JasonC

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

The basic German defense doctrine was the one they developed during WW I to avoid being defeated by local concentration and artillery suppression, and it remains the basic system the Germans used in the east.  That tactical system has been called the denuded front, in comparison with practice near the start of WW I of lining continuous front line trenches with solid lines of riflemen.  Instead it was based around a few fortified machinegun positions, concealed, and cross fired to cover each other rather than their own front, in an interlocking fashion.  The idea being to make it hard to take out just a piece of the scheme.  Most forces were kept out of the front line to let enemy artillery "hit air".  Wide areas were covered by barrage fire and obstacles (in WW I generally just wire, in WW II plenty of mines as well).  Barrages and obstacles have the feature that they multiple in their effectiveness the more then enemy sends; his local odds does not help him, it hinders him or raises his losses instead.  The MG and outpost network is meant to defeat penetration by smaller enemy numbers, while barrages crucify their masses if they overload those.
 
Then the main body of the defending infantry defends from considerably farther back, and executes local counterattacks into portions of the defensive system reached by the attackers.  The idea is to spend as much prep barrage time as possible deep in underground shelters, and only come up and forward to mix it up with enemy infantry after they are mixed in with your own positions and hard for the enemy to distinguish and coordinate fires on them etc.  This also was meant to exploit the confusion that even successful attackers were generally in, after crossing the outpost and barrage zone described above.
 
That is an effective enough system, but it isn't foolproof.  The thinner front and separated strongpoint positions it uses are vulnerable to stealthy penetration, night infiltration e.g., rather than frontal attack on a large scale.  The local counterattack part of the doctrine can be taken to extremes and get rather expensive for the defenders, resulting in mere brawling inside the defender's works, and just exchange off with the more numerous attackers.  What it really relies on is the enemy being defeated by the artillery fire scheme and ranged MG fire over most of the frontage, so that the counterattack and brawl stuff only happens in a few exceptional spots, where the defenders have a safer route to the front, better information about where the enemy is, what routes are left clear of obstacles, and the like.
 
The main line of resistance, once hit, generally tried to solve the fire discipline dilemma by firing quite late, when the attackers were close enough to really destroy them, not just drive them to ground.  Harassing mortar fire and a few "wait a minute" MGs were all that fired at longer ranges, to delay the enemy and prevent them being able to maneuver easily, mass in front of the defenders safely, and the like.
 
At a higher level, the division's artillery regiment commander, divisional commander, or regional "Arkos" tried to manage the larger battle by choosing where to intervene in the outcoming attack with the weight of divisional fires.  They didn't distributed those evenly, or according to need.  Instead they would have a plan of their own, to stop the Russians cold in sector B, and just make do in sectors A and C.  They divide the attack that way.  Then shift fires to one of the break ins, and counterattack the other one with the divisional reserve.  The basic idea is just to break up the larger scale coordination of the offensive by imposing failure where the defenders choose, by massing of fires.  They can't do this everywhere, but it can be combined with choices of what to give up, who pulls back, what the next good position is, and the like, as a coordinated scheme.  The function is "permission" - you only get forward where I let you get forward, not where you want it.  If the enemy tries to get forward in the place the defenders "veto" in this way, they just mass their infantry under the heaviest artillery and multiple their own losses.
 
I should add, though, that those doctrinal perfect approaches sometimes could not be used in the conditions prevalent in parts of Russia.  In the north, large blocks of forest and marsh are so favorable for infiltration tactics that separate strongpoints with only obstacles in between just invite penetration every night and loss of the position.  The Germans often had to abandon their doctrine in those areas, in favor of a continuous linear trench line.  And then, they often didn't have sufficient forces to give that line any real depth, but instead had to defend on line, manning that whole front as best they could.  In the more fluid fighting in the south, on the other hand, the Germans could and did use strongpoint schemes.  The Russians got significantly better at night infiltration as a means to get into or through those, as the war went on.
 
Against Russian armor the German infantry formations also had a harder time of it.  In exceptional cases they could prepare gun lines with enough heavy ATGs well enough protected and sited to give an armor attack a bloody nose, but normally they were not rich or prepared enough for that.  Keep in mind that the Russians were quite good at tank infantry cooperation in their mech arm - by midwar that is, early they hadn't been - but lagged in the development of tank artillery cooperation.  Which is what tanks need to deal with gun based defenses efficiently.  The German infantry formations themselves tried to just strip tanks of their infantry escorts and let the tanks continue.  The Russians would sometimes make that mistake, and send the tanks deeper on their own.  That put them in the middle of a deep German defense that would know more about where they were and what they were doing than vice versa.  But that is really an "own goal" thing - if the Russian tanks just stayed with their riders and shot the crap out of the German infantry defenses, the Russian doctrine worked fine.
 
On a deeper level, the Germans relied on their own armor to stop Russian armor.  Brawling frontally with reserves, often enough, sometimes aided by superior AFVs.  Sometimes by counterattacks that sought to cut off the leading Russian spearheads, and prevent their resupply (with fuel above all).  That worked less and less well as the war went on, however, because the Russians got better at keeping multiple threats growing on the map, gauging defender strength correctly and waiting for all arms to consolidate gains, and the like.  There was also just less of the fire brigade German armor later in the war, and it had less of an edge in tactical know-how.
 
There are also some weaknesses of the Russian doctrine that the Germans tried to exploit.  It can be quite predictable.  You can let them succeed at things to draw them in, in a pretty predictable way.  The Russian mech way of attacking was at its best against infantry defenses, or vs armor against heavily outnumbered defenders.  If they pushed too hard at a strong block of armor, they could get a brigade killed in a matter of hours.  If you have such an asset, you can try to string the two together - let them hit a weak spot precisely where you want them to come on hard into your planned kill sack.  They aren't doing a lot of battlefield recon to spot such things, they are mostly relying on speed to create surprise.  If you let them think they just made a brilliant and formula perfect break in, they are apt to drive hard trying to push it home, and not to suspect that its is a trap.  But a lot of things get easier if you have a Tiger or Panther battalion lying around, don't they?

The basic German defense doctrine was the one they developed during WW I to avoid being defeated by local concentration and artillery suppression, and it remains the basic system the Germans used in the east.  That tactical system has been called the denuded front, in comparison with practice near the start of WW I of lining continuous front line trenches with solid lines of riflemen.  Instead it was based around a few fortified machinegun positions, concealed, and cross fired to cover each other rather than their own front, in an interlocking fashion.  The idea being to make it hard to take out just a piece of the scheme.  Most forces were kept out of the front line to let enemy artillery "hit air".  Wide areas were covered by barrage fire and obstacles (in WW I generally just wire, in WW II plenty of mines as well).  Barrages and obstacles have the feature that they multiple in their effectiveness the more then enemy sends; his local odds does not help him, it hinders him or raises his losses instead.  The MG and outpost network is meant to defeat penetration by smaller enemy numbers, while barrages crucify their masses if they overload those.
 
Then the main body of the defending infantry defends from considerably farther back, and executes local counterattacks into portions of the defensive system reached by the attackers.  The idea is to spend as much prep barrage time as possible deep in underground shelters, and only come up and forward to mix it up with enemy infantry after they are mixed in with your own positions and hard for the enemy to distinguish and coordinate fires on them etc.  This also was meant to exploit the confusion that even successful attackers were generally in, after crossing the outpost and barrage zone described above.
 
That is an effective enough system, but it isn't foolproof.  The thinner front and separated strongpoint positions it uses are vulnerable to stealthy penetration, night infiltration e.g., rather than frontal attack on a large scale.  The local counterattack part of the doctrine can be taken to extremes and get rather expensive for the defenders, resulting in mere brawling inside the defender's works, and just exchange off with the more numerous attackers.  What it really relies on is the enemy being defeated by the artillery fire scheme and ranged MG fire over most of the frontage, so that the counterattack and brawl stuff only happens in a few exceptional spots, where the defenders have a safer route to the front, better information about where the enemy is, what routes are left clear of obstacles, and the like.
 
The main line of resistance, once hit, generally tried to solve the fire discipline dilemma by firing quite late, when the attackers were close enough to really destroy them, not just drive them to ground.  Harassing mortar fire and a few "wait a minute" MGs were all that fired at longer ranges, to delay the enemy and prevent them being able to maneuver easily, mass in front of the defenders safely, and the like.
 
At a higher level, the division's artillery regiment commander, divisional commander, or regional "Arkos" tried to manage the larger battle by choosing where to intervene in the outcoming attack with the weight of divisional fires.  They didn't distributed those evenly, or according to need.  Instead they would have a plan of their own, to stop the Russians cold in sector B, and just make do in sectors A and C.  They divide the attack that way.  Then shift fires to one of the break ins, and counterattack the other one with the divisional reserve.  The basic idea is just to break up the larger scale coordination of the offensive by imposing failure where the defenders choose, by massing of fires.  They can't do this everywhere, but it can be combined with choices of what to give up, who pulls back, what the next good position is, and the like, as a coordinated scheme.  The function is "permission" - you only get forward where I let you get forward, not where you want it.  If the enemy tries to get forward in the place the defenders "veto" in this way, they just mass their infantry under the heaviest artillery and multiple their own losses.
 
I should add, though, that those doctrinal perfect approaches sometimes could not be used in the conditions prevalent in parts of Russia.  In the north, large blocks of forest and marsh are so favorable for infiltration tactics that separate strongpoints with only obstacles in between just invite penetration every night and loss of the position.  The Germans often had to abandon their doctrine in those areas, in favor of a continuous linear trench line.  And then, they often didn't have sufficient forces to give that line any real depth, but instead had to defend on line, manning that whole front as best they could.  In the more fluid fighting in the south, on the other hand, the Germans could and did use strongpoint schemes.  The Russians got significantly better at night infiltration as a means to get into or through those, as the war went on.
 
Against Russian armor the German infantry formations also had a harder time of it.  In exceptional cases they could prepare gun lines with enough heavy ATGs well enough protected and sited to give an armor attack a bloody nose, but normally they were not rich or prepared enough for that.  Keep in mind that the Russians were quite good at tank infantry cooperation in their mech arm - by midwar that is, early they hadn't been - but lagged in the development of tank artillery cooperation.  Which is what tanks need to deal with gun based defenses efficiently.  The German infantry formations themselves tried to just strip tanks of their infantry escorts and let the tanks continue.  The Russians would sometimes make that mistake, and send the tanks deeper on their own.  That put them in the middle of a deep German defense that would know more about where they were and what they were doing than vice versa.  But that is really an "own goal" thing - if the Russian tanks just stayed with their riders and shot the crap out of the German infantry defenses, the Russian doctrine worked fine.
 
On a deeper level, the Germans relied on their own armor to stop Russian armor.  Brawling frontally with reserves, often enough, sometimes aided by superior AFVs.  Sometimes by counterattacks that sought to cut off the leading Russian spearheads, and prevent their resupply (with fuel above all).  That worked less and less well as the war went on, however, because the Russians got better at keeping multiple threats growing on the map, gauging defender strength correctly and waiting for all arms to consolidate gains, and the like.  There was also just less of the fire brigade German armor later in the war, and it had less of an edge in tactical know-how.
 
There are also some weaknesses of the Russian doctrine that the Germans tried to exploit.  It can be quite predictable.  You can let them succeed at things to draw them in, in a pretty predictable way.  The Russian mech way of attacking was at its best against infantry defenses, or vs armor against heavily outnumbered defenders.  If they pushed too hard at a strong block of armor, they could get a brigade killed in a matter of hours.  If you have such an asset, you can try to string the two together - let them hit a weak spot precisely where you want them to come on hard into your planned kill sack.  They aren't doing a lot of battlefield recon to spot such things, they are mostly relying on speed to create surprise.  If you let them think they just made a brilliant and formula perfect break in, they are apt to drive hard trying to push it home, and not to suspect that its is a trap.  But a lot of things get easier if you have a Tiger or Panther battalion lying around, don't they?

The basic German defense doctrine was the one they developed during WW I to avoid being defeated by local concentration and artillery suppression, and it remains the basic system the Germans used in the east.  That tactical system has been called the denuded front, in comparison with practice near the start of WW I of lining continuous front line trenches with solid lines of riflemen.  Instead it was based around a few fortified machinegun positions, concealed, and cross fired to cover each other rather than their own front, in an interlocking fashion.  The idea being to make it hard to take out just a piece of the scheme.  Most forces were kept out of the front line to let enemy artillery "hit air".  Wide areas were covered by barrage fire and obstacles (in WW I generally just wire, in WW II plenty of mines as well).  Barrages and obstacles have the feature that they multiple in their effectiveness the more then enemy sends; his local odds does not help him, it hinders him or raises his losses instead.  The MG and outpost network is meant to defeat penetration by smaller enemy numbers, while barrages crucify their masses if they overload those.
 
Then the main body of the defending infantry defends from considerably farther back, and executes local counterattacks into portions of the defensive system reached by the attackers.  The idea is to spend as much prep barrage time as possible deep in underground shelters, and only come up and forward to mix it up with enemy infantry after they are mixed in with your own positions and hard for the enemy to distinguish and coordinate fires on them etc.  This also was meant to exploit the confusion that even successful attackers were generally in, after crossing the outpost and barrage zone described above.
 
That is an effective enough system, but it isn't foolproof.  The thinner front and separated strongpoint positions it uses are vulnerable to stealthy penetration, night infiltration e.g., rather than frontal attack on a large scale.  The local counterattack part of the doctrine can be taken to extremes and get rather expensive for the defenders, resulting in mere brawling inside the defender's works, and just exchange off with the more numerous attackers.  What it really relies on is the enemy being defeated by the artillery fire scheme and ranged MG fire over most of the frontage, so that the counterattack and brawl stuff only happens in a few exceptional spots, where the defenders have a safer route to the front, better information about where the enemy is, what routes are left clear of obstacles, and the like.
 
The main line of resistance, once hit, generally tried to solve the fire discipline dilemma by firing quite late, when the attackers were close enough to really destroy them, not just drive them to ground.  Harassing mortar fire and a few "wait a minute" MGs were all that fired at longer ranges, to delay the enemy and prevent them being able to maneuver easily, mass in front of the defenders safely, and the like.
 
At a higher level, the division's artillery regiment commander, divisional commander, or regional "Arkos" tried to manage the larger battle by choosing where to intervene in the outcoming attack with the weight of divisional fires.  They didn't distributed those evenly, or according to need.  Instead they would have a plan of their own, to stop the Russians cold in sector B, and just make do in sectors A and C.  They divide the attack that way.  Then shift fires to one of the break ins, and counterattack the other one with the divisional reserve.  The basic idea is just to break up the larger scale coordination of the offensive by imposing failure where the defenders choose, by massing of fires.  They can't do this everywhere, but it can be combined with choices of what to give up, who pulls back, what the next good position is, and the like, as a coordinated scheme.  The function is "permission" - you only get forward where I let you get forward, not where you want it.  If the enemy tries to get forward in the place the defenders "veto" in this way, they just mass their infantry under the heaviest artillery and multiple their own losses.
 
I should add, though, that those doctrinal perfect approaches sometimes could not be used in the conditions prevalent in parts of Russia.  In the north, large blocks of forest and marsh are so favorable for infiltration tactics that separate strongpoints with only obstacles in between just invite penetration every night and loss of the position.  The Germans often had to abandon their doctrine in those areas, in favor of a continuous linear trench line.  And then, they often didn't have sufficient forces to give that line any real depth, but instead had to defend on line, manning that whole front as best they could.  In the more fluid fighting in the south, on the other hand, the Germans could and did use strongpoint schemes.  The Russians got significantly better at night infiltration as a means to get into or through those, as the war went on.
 
Against Russian armor the German infantry formations also had a harder time of it.  In exceptional cases they could prepare gun lines with enough heavy ATGs well enough protected and sited to give an armor attack a bloody nose, but normally they were not rich or prepared enough for that.  Keep in mind that the Russians were quite good at tank infantry cooperation in their mech arm - by midwar that is, early they hadn't been - but lagged in the development of tank artillery cooperation.  Which is what tanks need to deal with gun based defenses efficiently.  The German infantry formations themselves tried to just strip tanks of their infantry escorts and let the tanks continue.  The Russians would sometimes make that mistake, and send the tanks deeper on their own.  That put them in the middle of a deep German defense that would know more about where they were and what they were doing than vice versa.  But that is really an "own goal" thing - if the Russian tanks just stayed with their riders and shot the crap out of the German infantry defenses, the Russian doctrine worked fine.
 
On a deeper level, the Germans relied on their own armor to stop Russian armor.  Brawling frontally with reserves, often enough, sometimes aided by superior AFVs.  Sometimes by counterattacks that sought to cut off the leading Russian spearheads, and prevent their resupply (with fuel above all).  That worked less and less well as the war went on, however, because the Russians got better at keeping multiple threats growing on the map, gauging defender strength correctly and waiting for all arms to consolidate gains, and the like.  There was also just less of the fire brigade German armor later in the war, and it had less of an edge in tactical know-how.
 
There are also some weaknesses of the Russian doctrine that the Germans tried to exploit.  It can be quite predictable.  You can let them succeed at things to draw them in, in a pretty predictable way.  The Russian mech way of attacking was at its best against infantry defenses, or vs armor against heavily outnumbered defenders.  If they pushed too hard at a strong block of armor, they could get a brigade killed in a matter of hours.  If you have such an asset, you can try to string the two together - let them hit a weak spot precisely where you want them to come on hard into your planned kill sack.  They aren't doing a lot of battlefield recon to spot such things, they are mostly relying on speed to create surprise.  If you let them think they just made a brilliant and formula perfect break in, they are apt to drive hard trying to push it home, and not to suspect that its is a trap.  But a lot of things get easier if you have a Tiger or Panther battalion lying around, don't they?

There was nothing wrong with Russian interwar doctrine - which incidentally was not copied from the west. In so e ways it was the best in the workd, particularly the understanding of the need to sequence multiple large scale operations, the logistics limits on them, what the role of new mechanized forces was going to be, and the like.n it wasn't as good as the German doctrine in tactical details, combined arms principles, and some of the German maneuver tradition going back to Moltke the elder, but nobody else had that stuff down, either. Tbey had their internal political fights over it - the party basically feared that proper modern doctrine made generals tech heroes in a manner they feared was essentially tied to fascist politics, which was both paranoid and stupid, and they destroyed the brains that had come up with it in the purges, set back training and adoption etc. but the military acadamies had taught it to a fair portion of the senior officers, especially the younger ones who would rise to top commands during the war itself.

The more basic problem on the doctrine side was that it was still just academic theory. It had not had time to reshape the army along the lines of its thinking, and where it had, it had done so in impractical ways, for lack of serious experiment and training in full scake exercises and the like. The army could not implement the mobile part of the doctrine. The officer corps in particular, its lower ranks especially, was not remotely up to the standard of the Germans or even of the professionals of the western armies. In training, education, time in grade, staff work, etc. Bravery they could do, obediance they had done, about all there was to work with. Yes that reflected the purges, but also the scale of the force and its rapid expansion to that scale, its reliance on reserve mobilization (necessary given that scale in any event), lack of wartime experience, etc. at most, a small cadre had some battle experience from Spain or the brief fight with Japan - and the party tended to distrust those with the former experience. The Finnish winter war had been a disaster and showed how unready the force was, and didn't correct that, though a few of the officers involved got started off its lessons.

The two biggest weaknesses were combat service and support (CSS, more on it below), by far the biggest, and poor combined arms handling at the tactical level, particularly all cooperation with armor. They compounded each other, with weaknesses in the former forcing departures from book doctrine on the latter, that then failed. Behind the CSS failures lay inadequate staff ability, the officer management bandwidth to conduct the mech arms orchestra flawlessly. This was made worse by overly large mech formations with an org chart that wasn't streamlined enough and put extra levels of command between the key deciders and the execution, by lots of obsolete equipment (think early 1930s era T-26s, flocks of them) in a poor state of readiness, by inadequate facilities to keep anynof it working, and by lack of realistic large scale training (as opposed to unit level training or carefully staged set pieces).

On the org aspect, a prewar mech corps had two tank divisions, each with its own brigades, and those tank heavy. It had 2000 trucks at TOE, and 600 to 1000 tanks, depending on the makes. There were dozens of these. A huge portion of the tanks were old T-26s and the types were mixed, as were the truck types. To get a formation like that to move over a limited dirt road net from point A to point B with gas for everyone where and when they needed it, without traffic jams and without roads blocked by broken down tanks, with repair and spare parts to get the fall outs moving again, and then exoecting them to arrive with all arms together and coordinated, in communication with each other across weapon types, form them up into fighting combined arms teams, and go in to a schedule to hit the enemy in a well coordinated way - all proved beyond the capacity of one schooled muckety muck and his staff of four high school graduates with a pack of index cards, a phone and a couple of pencils. I exaggerate slightly for the sake of clarity.

What actually happened is they didn't manage it, one column got stopped by a T-26 regiment running out of gas, holding up 200 trucks behind, carrying the infantry expected to be part of the show; the other tank division got a brigade of newer BTs to the jump off point and looked around for all the folks supposed to attack with them, waited three hours, finally heard they wouldn't be ready until tomorrow morning, thought "that's crazy, this battle will be over by then", and drove down the road unsupported and attacked off the line of march as best they could. After scaring the German front line infantry, lost in the defended zone, they blundered onto a gun line and lost a bunch of tanks. They try again with minimal changes an hour or two latter and the Germans are readier for them than ever, and fails. The next day, an infantry battalion detrucks and tries, but expects the BTs to lead and do things for them; the try and fail, the infantry presses, and gets killed too. Nobody has heard from the artillery, which is 20 miles away in a traffic jam.

The CSS failures are huge by western or even later war Russian standards. A third of the tanks fall out on a road march. There are not planned arrangements to pick them up and fix them. The front moves and a road is cut. A full brigade worth of tankers get out and walk, in retreat, leaving their broken down hulks just sitting there. Another brigade follows the wrong dirt track, runs out of gas, and the trucks with the gas went someplace else, and by the time it is even sorted out whar did happen - let alone what has to happen next - there are Germans across the intersection between them.

Up at the operational level, a full mech corps hits the German lines, two days of confusion are reported, the corps is now a brigade, and the Germans resume their march. The Russian officers report losing their tanks to swamps (the swamp monster, I call it, because it appears over and over in these excuses). It fiesn't help that the Luftwaffe is strafing the columns making traffic jams worse, and German signals intel locates every radio with a range of more than a few miles and has told the Luftwaffe and army artillery where the Russian HQs are within hours, whenever they switch the set on. So soon the officers are trying to coordinate this sprawling mess with dispatch riders, who do or don't arrive with orders hours old that were issued without a clear picture of everything in the first place, and were nonsense on stilts two hours later. Then every muckety muck tries to clear it all up with their own orders, and the regiment commander has one order from brigade and another from division and a third (12 hours okd) from the original corps plan, but his (tiny) staff is telling him he can't physically do that anyway, because support X hasn't cone up and route Y is clogged and there is only enough gas to reach Z.

Now decide. You have five minutes.

It all goes pear shaped pretty quickly.

Some of this clears up as the decreipt T-26s drop out of the force. Some as the screwiest commanders ger killed. Sone as people learn their jobs better. But above all, the army reduces its ambitions and goes to tank brigades and gets thise working, the recreates division sized tank corps with a much flatter structure only after those are working. The types get more uniform, with the reliable and cross country capable T-34 becoming the workhorse. They only go back to trying to run tank armies after all those are working properly, and they use thise only with a lot more planning, and only a handful of them (with lots of independent division scale tank corps working for combined arms armies instead). The staffs get bigger and much more professional, and it all gets real and realistic. Just, a ,ot of poor slobs get killed in the meantime.

FWIW.

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

Apocal - the mechanized corps fought like the tank corps, it just had a tank regiment with each of 3 motorized rifle brigades, plus a 4th brigade that was pure tank.  
They still fought like the tank corps fought.  They had as many tanks as a tank corps, with 10 infantry battalions in the formation rather than 6, and a marginally more infantry heavy mix, as a result.
 
This did not change their basic tactics.  It just meant where one of the sub formations was barreling ahead, it would sometimes have a thinner cutting edge of tanks and a longer trailing "shield" column of trucked infantry.  Though the tank corps portion would often be "on point" with exactly the same techniques as in the tank corps.  In practice, the extra infantry gave the formation greater staying power after taking losses in extended action, and a superior ability to hold the ground it took.    

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

Aured - Did the Russians use the same fire and maneuver tactics with typical triangle tasking used by the US in WW II?  No they did not.
 
Did they understand the basic principles of fire and maneuver, sure.  But the whole army was organized differently, tasked differently, placed less reliance on close coordination with artillery fires, wasn't based on small probes by limited infantry elements to discover the enemy and subject him to more of those fires, etc.  Basically there are a whole host of army-specific optimizations in US tactics that just don't apply.
 
The Russian force is divided into its mechanized arm and the rifle arm (called "combined arms" at the army level, but still distinct from mech).  Each had its own specific mix of standard tactics.  There are some common elements between them, but you should basically think of them as two distinct doctrines, each tailored to the force types and operational roles that type had.  Conceptually, the mech arm is the arm of maneuver and decision and exploitation, while the rifle arm is the arm of holding ground, creating breakthroughs / assault, and general pressure.  The mech arm is numerically only about a tenth of the force, but is far better armed and equipped, and controls more like 2/3rds of the armor.
 
The Front is the first element of the force structure that does not respect this distinction and is entirely above it, and Fronts are not uniform in composition, but always contain forces of both types (just sometimes only limited amounts of the mech type).  From the army level down to the brigade level, the distinction applies at one level or another.  Below that level it still applies but cross attachments may blur somewhat, but normally at all lower levels one has clearly either the mech or the rifle force type and uses the tactics appropriate to that type.
 
The army level is the principle control level for supporting elements and attachments - much higher than in other armies (e.g. for the Germans it was almost always the division level, with little above that level in the way of actual maneuver elements). The army commander is expected to "task" his pool of support arms formations to this or that division-scale formation within his command for a specific operation, depending on the role he has assigned to that formation.  This can easily double the organic weapons of such formations, and in the combined arms armies, is the sole way the rifle divisions get armor allocated to them.  What are we talking about here?  Independent tank brigades and regiments, SU regiments, heavy mortar regiments, rocket brigades and battalions, antitank brigades and regiments, motorcycle recon regiments and battalions, extra pioneer battalions, heavy artillery formations from regiment up to divisions in size, etc.  Basically, half of the guns and all of the armor is in the army commander's "kit bag" to dole out to his divisions depending on their role.  A rifle division tasked to lead an attack may have a full tank brigade attached, plus a 120mm mortar formation to double its firepower at the point of the intended breakthrough.  Another rifle division expected to defend on relatively open ground, suited to enemy tanks, may have an antitank artillery brigade attached, tripling its number of 76mm guns, and a pioneer battalion besides, tasked with mining all likely routes and creating anti tank ditches and other obstacles, etc.
 
Every division is given enough of the supporting arms to just barely fulfill its minimal standard role, and everything needed to do it better is pooled up in the army commander's kit bag, and doled out by him to shape the battle.  Similarly, the army commander will retain major control of artillery fires and fire plans.  Those are not a matter of a 2nd Lt with a radio calling in his target of opportunity, but of a staff of half a dozen highly trained technicians drafting a coordinated plan for days, all submitted to and approved - or torn up - by the army commander.  This highly centralized system was meant to maximize the impact of very scarce combined arms intelligence and tactical skill, which could not be expected of every green 2nd Lt.  
 
Within the rifle divisions, each level of the org chart has its own organic fire support, so that it does not need to rely on the highest muckety-muck and his determination that your sector is the critical one today.  When he does decide that, he is going to intervene in your little corner of the world with a weight of fire like a falling house; when he doesn't, you are going to make do with your assigned peashooters.
 
The divisional commander is assigning his much smaller divisional fires on the same principles, with the understanding that those smaller fires become not so small if the army commander lends him an extra 36 120mm mortars for this one.  The regimental commander may get his share of the divisional fires or he may get nothing outside what his own organic firepower arms can supply - but he gets a few 76mm infantry guns and some 120mm mortars and a few 45mm ATGs so that he can make such assignments even if he gets no help.  Frankly though the regiment adds little - it mostly assigns its battalions missions, and the regimental commander's main way of influencing the fight is the formation he assigns to those component battalions.  Formation in the very simplest sense - he has 3 on line to cover a wide front, or he has 3 in column on the same frontage to provide weight behind an attack, or the 2-1 or 1-2 versions of either of those.  It is not the case that he always uses 2-1 on all roles.  The most common defense is 2-1 and the most common offensive formation is column, all 3 one behind the other on the same frontage.  Notice, this isn't about packing the riflemen in - those will go off in waves at proper intervals front to back.  But it puts all 27 of the regiment's 82mm mortars (9 per battalion) in support behind 1 or 2 kilometers of front line.
 
The fire support principle at the battalion level is not implemented by having one of the component battalions support the others by fire from a stationary spot, with all arms.  Instead it is a combined arms thing inside each battalion.  They each have their 9 82mm mortars and their 9 Maxim heavy machineguns organized into platoons, and the "fire support plan" is based on those infantry heavy weapons.  Battalion AT ability is minimal - 2 45mm ATGs and a flock of ATRs, barely enough to hold off enemy halftracks and hopeless against whole battalions of tanks.  But that is because the higher muckety-mucks are expected to know where the enemy tanks are going to come and to have put all the army level ATG formations and their own supporting armor formations and the pioneers with their minefields and obstacles, in those spots.
 
Down inside the battalion, the same formation choices arise for the component rifle companies as appeared at battalion, and the usual formations are again 2-1 on defense and all in column on the attack.  And yes that means you sometimes get really deep columns of attack, with a division first stepping off with just a few lead companies with others behind them, and so on.  This doesn't mean packed shoulder to shoulder formations, it means normal open intervals 9 times in a row, one behind another, only one at a time stepping off into enemy fire zones.  These "depth tactics" were meant to *outlast* the enemy on the same frontage, in an attrition battle, *not* to "run him off his feet in one go", nor to outmaneuver him.  The later parts could be sidestepped to a sector that was doing better and push through from there.  The last to "pancake" to the front if the other had all failed, would not attack, but instead go over to the defensive on the original frontage and hold.  One gets reports of huge loss totals and those "justifying" the attack attempt when this happens - the commander can show that he sent 8/9ths of his formation forward but they could not break through.  It is then the fault of the muckety muck who didn't gauge the level of support he needed correctly or given him enough supporting fires etc.  If on the other hand the local commander came back with losses of only his first company or two and a remark that "it doesn't look good, we should try something else", he will be invited to try being a private as that something else, etc.
 
What is expected of the lower level commander in these tactics is that he "lay his ship alongside of the enemy", as Nelson put it before Trafalgar.  In other words, close with the enemy and fight like hell, hurt him as much as your organic forces can manage to hurt him.  Bravery, drive, ruthlessness - these are the watchwords, not cleverness or finesse or artistry.  
 
What is happening in the combined arms tactics within that rifle column attack?  The leading infantry companies are presenting the enemy a fire discipline dilemma - how close to let the advancing Russian infantry get before revealing their own positions by cutting loose.  The longer they take to do so, the close the Russian infantry gets before being driven to the ground.  Enemy fire is fully expected to drive the leading infantry waves to the ground, or even to break them or destroy them outright - at first.  But every revealed firing point in that cutting loose is then subjected to another round of prep fire by all of the organic and added fire support elements supporting the attack.  The battalion 82mm mortars, any attached tanks, and the muckety-mucks special falling skies firepower, smashes up whatever showed itself crucifying the leading wave.
 
Then the next wave goes in, just like the first, on the same frontage.  No great finesse about it, but some of the defenders already dead in the meantime.  Same dilemma for his survivors.  When they decide to hold their fire to avoid giving the mortars and Russian artillery and such, juicy new things to shoot at, the advancing infantry wave gets in among them instead.  And goes to work with grenade and tommy gun, flushing out every hole.  The grenadier is the beater and the tommy gun is the shotgun, and Germans are the quail.  Notice, the firepower of the infantry that matters in this is the short range stuff, because at longer range the killing is done by supporting artillery arms.  The rifles of the most of the infantry supplement of course, but really the LMGs and rifles are primarily there as the defensive firepower of the rifle formation, at range.
 
It is slow and it is bloody and it is inefficient - but it is relentless.  The thing being maximized is fight and predictability - that the higher muckety mucks can count on an outcome on this part of the frontage proportional to what they put into it.  Where they need to win, they put in enough and they do win - hang the cost.  It isn't pure suicide up front - the infantry go to ground when fired at and they fire back,and their supporting fires try to save them, and the next wave storms forward to help and pick up the survivors and carry them forward (and carry the wounded back).  In the meantime the men that went to ground are defending themselves as best they can and sniping what they can see;  they are not expected to stand up again and go get killed.  That is the next wave's job.  The first did its part when it presented its breast to the enemy's bullets for that first advance.  The whole rolls forward like a ratchet, the waves driven to ground holding tenaciously whatever they reached.
 
That is the rifle, combined arms army, way of fighting.
 
The mech way of fighting is quite different.  There are some common elements but again it is better to think of it like a whole different army with its own techniques.  Where the rifle arm emphasizes depth and relentlessly, the mech way emphasizes rapid decision and decisive maneuver, which is kept dead simple and formulaic, but just adaptive enough to be dangerous.
 
First understand that the standard formation carrying out the mech way of fighting is the tank corps, which consists of 3 tank and 1 rifle brigade, plus minimal attachments of motorized guns, recon, and pioneers.  The rifle brigade is 3 battalions and is normally trailing the tank brigades and holds what they take.  Sometimes it doubles their infantry weight and sometimes it has to lead for a specific mission (force a river crossing, say, or a night infiltration attack that needs stealth - things only infantry can do), but in the normal offensive case it is just driving up behind something a tank brigade took, dismounting, and manning the position to let the tank brigade go on to its next mission.  It has trucks to keep up, and the usual infantry heavy weapons of 82mm mortars and heavy MGs, but it uses them to defend ground taken.  Notionally, the rifle brigade is the tank corps' "shield" and it maneuvers it separately as such.
 
The business end of the tank corps is thus its tank brigades, which are its weapons.  Each has a rifle battalion organic that is normally physically riding on the tanks themselves, and armed mostly with tommy guns.  The armor component of each brigade is equivalent in size to a western tank battalion - 50-60 tanks at full TOE - despite the formation name.
 
I will get to the larger scale tactics of the use of the tank brigades in just a second, but first the lowest level, tactical way the tanks with riders fight must be explained.  It is a version of the fire discipline dilemma discussed earlier, but now with the critical difference that the tanks have huge firepower against enemy infantry and other dismounts, making any challenge to them by less than a full panzer battalion pretty suicidal.  What the tanks can't do is force those enemy dismounts to open fire or show themselves.  Nor can the tanks alone dig them out of their holes if they don't open fire.  That is what the riders are there to do - kill the enemy in his holes under the overwatch of the massed tanks if and only if the enemy stays low and keeps quiet and tries to just hide from the tanks.  That threat is meant to force the enemy to open fire.  When they do, the riders drop off and take cover and don't need to do anything - the tanks murder the enemy.  Riders pick their way forward carefully after that, and repeat as necessary if there are enemy left alive.  This is all meant to be delivered very rapidly as an attack - drive right at them, take fire, stop and blast for 5 or 10 minutes tops, and move forward again, repeating only a few times before being right on or over the enemy.
 
So that covers the small tactics of the mech arm on the attack.  Up a bit, though, they are maneuvering, looking for enemy weak spots, especially the weak spots in his anti tank defenses.  And that follows a standard formula of the echelon attack.  
 
Meaning, the standard formation is a kind of staggered column with the second element just right or left of the leading one, and the third off to the same side as far again.  The individual tank brigade will use this approach with its component tank companies or pairs of companies, and the whole corps will use it again with its brigades.
 
The first element of such an echelon attack heads for whatever looks like the weakest part of the enemy position - in antitank terms - and hits it as hard as it can, rapidly, no pausing for field recon.  The next in is reacting to whatever that first one experiences, but expects to wrap around one flank of whatever holds up the prior element and hit hard, again, from a slightly changing direction.  This combined hit, in rapid succession, is expected to destroy that blockage or shove it aside.  The third element following is expected to hit air, a hole made by the previous, and push straight into the interior of the enemy position and keep going.  If the others are checked, it is expected to drive clear around the enemy of the harder enemy position - it does not run onto the same enemy hit by the previous elements.  If the enemy line is long enough and strong enough to be neither flanked nor broken through by this process, well tough then.  Some other formation higher in the chain or two grids over is expected to have had better luck in the meantime.
 
There are of course minor adaptations possible in this formula.  If the lead element breaks clean through, the others shift slightly into its wake and just exploit - they don't hit any new portion of the enemy's line.  If the first hit a position that is clearly strong as well as reasonably wide, the other two elements may pivot outward looking for an open flank instead of the second hitting right where the first did, just from a different angle.  The leading element can pull up short and just screen the frontage if they encounter strong enemy armor.  Then the second still tries to find an open flank, but the third might slide into reserve between and behind the first and second.
 
The point of the whole approach is to have some adaptability and flexibility, to be designed around reinforcing success and hitting weaker flanks not just frontal slogging - all of which exploit the speed and maneuver power of the tanks within the enemy's defensive zone.  But they are also dead simple, formulas that can be learned by rote and applied mechanically.  They are fast because there is no waiting for recon pull to bring back info on where to hit.  The substance that needs to be grasped by the leader of a 2nd or 3rd element is very limited, and either he can see it himself or the previous element manages to convey it to him, or gets it up to the commander of all three and he issues the appropriate order downward.  They are all mechanically applying the same doctrine and thinking on the same page, even if out of contact at times or having different amounts of information.  The whole idea is get the power of maneuver adaptation without the delays or the confusion that can set in when you try to ask 3 or more bullheaded linemen to solve advanced calculus problems.  There is just one "play" - "you hit him head on and stand him up, then I'll hit him low and shove him aside, and Joe can run through the hole".
 
There are some additional principles on defense, the rifle formation forces specially,  where they use 2 up 1 back and all around zones and rely on stealth and field fortifications for their protection, while their heavy weapons reach out far enough to cover the ground between each "blob", and their LMGs and rifles reach out far enough to protect each blob frontally from enemy infantry.  That plus deeper artillery fires provides a "soft defense" that is expected to strip enemy infantry from any tanks, or to stop infantry only attacks on its own.  Or, at least, to make it expensive to trade through each blob in layer after layer, in the same "laying his ship alongside of the enemy", exchange-attrition sense.  Then a heavier AT "network" has to cover the same frontage but starting a bit farther back, overlapped with the second and later infantry "blobs".  The heavy AT network is based on cross fire by 45mm and 76mm ATGs, plus obstacles (watrer, ditches, mines, etc) to channel enemy tanks to the locations where those are dense.  Any available armor stays off the line in reserve and slides in front of enemy penetration attempts, hitting strength not weakness in this case, just seeking to seal off penetrations and neutralize any "differential" in odds or armor concentration along the frontage.  On defense, the mech arm operates on its own principles only at tank corps and higher scale, and does so by counterpunching with its offensive tactics, already described above.
 
That's it, in a nutshell.  I hope this helps.  

I second JonS's comment.  All the German general fantasies about easily making peace, overall or just with the west, are delusional.  The Allies were going to stomp them into the mud and were not going to break ranks with each other.  They could surrender and avoid the front line tail kicking and the air destruction of the homeland in the last year or two of the war, but only by accepting the ultimate outcome as already written in granite - which it was.  The last time when getting rid of Hitler might have meant a general peace instead is before Barbarossa.  If the generals ousted the regime then, they might have been able to secure a peace with the lone belligerent England, if and only if they gave up all conquests in the west and agreed to free Poland and similar.  They were not remotely realistic even about that - they would likely have made demands like keeping much of Poland, leaving a military government in power in Germany etc that would have been non-starters - but that was the best stretch for it.  Throughout, they tended to think if they had achieved something militarily it entitled them to something diplomatically.  The diplomatic reality was the more countries they messed with and the more people they killed, the less anyone was going to put up with any of them remaining around, ever, under any circumstances.

womble - sure there was overkilling. But there was also plenty of flat out missing. Not everyone in the firing formation is an ace, some have the wrong range estimate, the targets start moving, smoke gets popped or targets brew up and obscure lines of sight, the targets try to take cover, gunners get excited... Combat fire is not firing range fire, basically, and its achieved hit rates reflect it.

You can engage still at long ranges and have a quite good effect, if you just have enough shooters and enough target exposure time. But no, they don't need a TRP and they typically aren't boresighted or anything that elaborate. It is enough that one company gets the drop on the other.

The operational histories are full of cases of companies or even whole battalions of tanks being engaged by enemy AT shooters and really not having much in the way of reply, certainly of effective reply. They get shot up and they pull out and lick their wounds, without having done much of anything back.

As for ranges, sometimes as low as 800 yards, sometimes as long as 2.5 kilometers. At the longer ranges, often the shooters are never even located ; the targeted formation has their attention riveting on what is happening to them, very rapidly, and then on their defensive measures.

In CM terms, "panic" for a tank crew does happen, but they typically continue to spot well and even shoot back effectively, when in real life that often breaks down completely. Seeing 3 friendlies brew up and being under effective heavy AT fire is often enough to make any idea of fighting back effectively the farthest thing from the tanker's mind, just like being under sustained MG fire often leads an infantryman to bury his face in the dirt, not scan the horizon for muzzle flashes and try to duel effectively with his own single shot rifle.

Men are not all heroes. Combat is terrifying, and men get out of it when it is clearly going against them - if they can.

Recon isn't just for breakthrough sectors. Each of the different types of recon I mentioned set up its own competition with the enemy, naturally, but they were not easy to counter.

Take the infantry recon. Front lines units put out an outpost line, thinly manned, with listening posts at night etc. But German defenses were typically strongpoint based, with the gaps between strongpoints meant to be covered by fire, both infantry heavy weapons (MGs and 81mm mortars) and called divisional artillery fires. If it is daytime or there is a whole regiment moving through a gap and shooting at everything, that works. If it is 2 in the morning and a dozen veterans carefully and quietly pick their way through no man's land by previously scouted routes, not so much.

The Russians quite often managed to infiltrate entire battalions inside a German defense scheme between dusk and dawn, in the second half of the war - getting a squad or a platoon through here or there was a routine accomplishment. The fact that they were not looking to fight helped. They were willing to lay low for an entire day to get to the next spot of covered route - 4 guys under a muddy tarp near the bottom of a shellhole, stock still for hours on end - who is going to know they are there? Then when it gets dark they make another move.

Routine security practices have to kick in after that - watches and sentries and patroling etc. But the recon knows those drills, exploits them to catch isolated prisoners. Sure they will sometimes get discovered and a firefight will ensue, then they will "D" quickly - maybe they make it, maybe they don't. Either way, more where they came from, the next night and two kilometers down the line.

As for the mech's recon, is was motorcycles with light armor down every road, and you could check that with manned roadblocks, blocking positions on the important routes. The Russians weren't heavily armed, and they try going around those. They were willing to dismount and swing around them off road in short hooks, and if they cut one off that way, they could take it readily enough (armored cars or light tanks come down the road frontally, infantry has already reached the position's rear, etc). Anything really strong will just defeat those attempts - but that's sort of the idea, to find where there is anything really strong. The defender can't be really strong on every route, and the motorcycle guys radio or send dispatch riders to the tanks, and tell them which roads are not strongly held.

Normally what the defender has in those cases is rear guards of retreating infantry formations and alarm units. Not full strength panzer divisions with all the trimmings. Because that's why and where the Russian mech is advancing, and has recon out in front of it. So the roadblocks are shoestring affairs, most of them at least. The defenders will try to hold the routes that shelter their own line of retreat, to keep the Russian main body from getting ahead of them along it and cutting that line. The defenders are more trying to get away than to stop all the recon activities. Their units include horse drawn artillery and supplies, rear area services, all the refugee debris of retreat. The maneuver formations have to shelter that stuff and get it back to some more solid position, more solid in supporting friendlies and in defensible terrain, etc.

That is the situation in which having a dedicate force of fast, readily subdividing scouts pays off for the pursuer. If they meet solid positions they just pull up opposite, keep it under observation, report and wait for the higher ups to decide what to do about it, with stuff heavier than said recon.

As for the cavalry raid version, the Germans tried to hold the settlements and patrol the roads between them, while posting guards at every important rear area installation or bit of infrastructure. The normal job of their security divisions was guarding stuff in that fashion. They had to deal with partisans with the same forecs, and ad hoc supplements - Hiwi units, Axis minor allies, militarized police, etc. Against local partisans that sufficed, but against an entire Russian cavalry corps it was outmatched.

Understand, the Germans typically ceded deep woods interiors in all this, sending only fire missions and the occasional small strafing attack to such areas. They'd try to create cordons around known incursions, from security forces, alarm units pressed together from local whatever (Luftwaffe flak, rear area service personnel, replacement battalions, pioneers, whatever) and sometimes full infantry divisions pulled from the line or from reserves. Occasionally they'd counterattack with a mobile division.

Operating in what was effectively deep wilderness put its own strain on the cavalry. (In the winter, ski formations did the same thing in the northern half of the front, BTW). There isn't a lot of support out there, food, forage for the horses, ammo isn't growing on the trees. There was a logistical limit to the staying power of a raid, and eventually it would have to drift back to its own lines. The longer it stayed, the fewer of the men would make it back in one piece.

I hope that fills out the picture somewhat...

Now Bil is teaching the wrong lesson.

Yes fire and movement is proper doctrine, but as he said himself "you should be moving with the intent of gaining fire superiority on a portion of the enemy". Movement in fire and movement is all about achieving the many on few firefight, by avoiding the enemy where he is stronger and massing fire on him where you choose (sometimes where he is stronger actually, to multiply the effect of area weapons; sometimes where he is weaker to defeat that enemy element quickly).

But lots of commanders don't get this, and fire to suppress the enemy so they can move.

Bil revealed how strong this thinking can be when he described the maneuver element of the team thus "assault the enemy position. It's goal is to capture and clear the enemy held position, it can't do that without maneuver."

He said earlier the point of movement is to achieve fire superiority over an element of the enemy, and that was right. That you have to go stand on the enemy to take a position is exactly the wrong idea. I will go into the case where there is an element of truth in it below, but first the true principle needs to be stated.

Every place on the battlefield that you so dominate by fire that the enemy *cannot live there*, you *already own*. You don't need to be standing on it. It doesn't matter whether the enemy can reach that spot, it doesn't even matter whether he is actually on that spot right this instant, and it certainly doesn't matter whether you can go stand there yourself, including whether the movement to that spot is safe for friendly forces. None of those things is needed for it to be your ground.

If the enemy is on a spot you dominate by fire in that manner, you just kill him. Maneuver then has nothing to do with it. If the enemy moves there, you let him - and then you kill him.

The whole goal of the combat is not to hold locations or to take locations owned by the enemy, either in the above sense or by direct presence.

If you could kill the enemy force from the bottom of a bunker in Shangra-La without getting your hair mussed, you would.

The reason you are moving is that you typically can't do those things, because the enemy uses terrain to protect himself from your firepower. Not in the sense of standing in cover with clear LOS to your forces, but in the sense of full LOS blockages between you and him cutting all lines of sight and fire. We say, he skulks. He stays out of view.

If the enemy is too arrogant or dumb to skulk, forget that movement bit and just kill him from right here. This happens a *lot* more often that you might expect from reading tactical manuals.

When the enemy does skulk, yes you have to move *in order to put guns on target*. By the same token, the enemy just broke the lines of sight from his skulkers to your forces. Maybe he has LOS to a spot 40 meters farther on, but he doesn't have LOS to your current position or you'd have LOS to his - and you'd be firing, right?

The same issue repeats on the coordination scale. Meaning, the enemy skulks to see a few of your guys but avoid most of them. That is a proper use of small scale, adaptive, keyholing movement - he is trying to "achieve fire superiority on a portion of the enemy". You have to move to change that, or to do the same yourself. Check, that is the proper need for movement in fire and movement.

*Not* to run into his end zone and score a touchdown.

I said above I would discuss the kinda sorta exception where you do want to move onto the enemy and need an assault force to do it, of the sort Bil describes and considers normal. This happens when you don't have enough firepower to kill the enemy where he stands, but do have, and have already used with effect, enough firepower to force all his heads down and suppress the heck out of him.

When the enemy can't shoot back even straight to his front because he'd die if he stuck his head up 6 inches, you can cash in that blindness and temporary impotence to get more firepower on him, by moving an assault force closer. Notice, you only need to do this in the first place because he can't kill him from right where you are. He has enough cover to duck behind to live through your fire, but you have enough to keep him from standing up to fire back himself.

In that specific case, you can move a maneuver element closer to him - to a spot with cover still shy of where he is - to increase your firepower bearing on him to killing strength.

There is a last case where you move onto the enemy - when he breaks. This occurs a bit after the full suppression described above but before outright killing him, in effective firepower applied terms. By breaks I mean there is no fire coming back, everyone over there is suppressed or worse, and you also see them trying to bug out to get out of the firestorm. They are in fact defenseless at such a moment and you can charge right on top of them to finish them off or take them prisoner, or scatter the running survivors.

That happens *much* later in the fighting that most CM players think. They are forever charging too soon, because they are trying to solve the combat situation as a whole by movement, and they think moving toward or even onto the enemy is what attacking is.

Only at the finale, is my point, and only in very specific circumstance. 9 times out of 10 in the movements I see players make in CM games, they are early and should be shooting, or flanking (a special case of movement to get a many on few on one element of the enemy), or at most getting one element to other cover a bit closer as an example of the suppression exploitation case above.

If Bil had stuck with - and understruck and bold typed - the phrase "gaining fire superiority on a portion of the enemy", and then not added the other bits about needing to assault onto the enemy location to take it, the distance between us would been merely one of emphasis.

I've fought and taught commanders who thought fire and movement meant one half of their force should be firing and the other half moving to drop the range so their fire would become more lethal, mechanically applying this idea and completely ignoring whether the current firefight match up was favorable or unfavorable. Hearing the phrase "fire and movement" without understanding what it is actually about leads to such errors.

I've seen others, even worse, who think the purpose of their overwatch force is to suppress the enemy enough that their maneuver forces can safely cross this or that dangerous area to get closer to the enemy, or closer to an objective, or get to prominent cover locations with wide fields of fire that they imagined must be valuable. They were shooting only to move, in other words, while expecting way, way too much to result from movement, and movement not directed at the right goals. They just wanted to eat the battlefield by passing their force over it, and thought how well they were doing could be measured in square yards.

In contrast, consider the tiny movement that shifts a friendly tank around a keyhole to avoid LOS to the enemy gun while having LOS to the enemy platoon in those buildings. Is this half the force trying to cross dangerous open anything? No. Is it an assault trying to take enemy ground by going and standing on it? No. It is skulking to his gun, it is gaining fire superiority (by combined arms match up in this case) over a portion of the enemy, and a little smidgen of movement was necessary to accomplish it. But the whole point of that little smidgen is to pull a trigger with effect.

If you get that out of your movements, the rest is *irrelevant*. Kill the enemy, and you will take all the objectives. Kill the enemy without dying, and he can't touch you no matter where he goes. He can sprawl over all the map he wants to, he can score all the touchdowns he likes, the only end he will find in the zones he reaches will involve six feet of earth. All you need to worry about, the rest is mere means.

Shift the fundamental focus of your tactical thinking, away from goals and ground and movement, and toward death and attrition and firepower.

Joch - the RM was highly overvalued, and most economists use 4.2 RM to 1 dollar, not the official exchange rate, to convert them to dollars.  That is the purchasing power parity number.  The VIIC class sub price was 1.9 million to 2 million RMs, depending on the year.
 
Subs were much less expensive than the much larger merchant ships they were sinking.  1200 ton subs take out multiple 5000 to 10000 ton merchant ships.  The price of the sub is higher per ton of displacement, to be sure, but not by enough to make up that 4-8 to 1 size ratio, let alone that ratio times the 2.5 plus to 1 ratio of items sunk.
 
On the GDP way of measuring cost of the air war, the point is the US and UK were spending about equal shares of their much larger combined economies to inflict on the Germans about the same percent of GDP cost.  They have 3 times the combined economy early and 4 times later (after US expansion).  If they and Germany each spend about the same percentage of GDP, the Allies are spending 3-4 times as much absolutely, to accomplish it.  
 
The Allies also aren't really making any great headway that way.  The Allies as a group certainly were able to use their larger total economies to defeat Germany, which means they achieved an average rate of economic attrition well under the ratio of their economies - closer to unity.  That is precisely how they were able to destroy all of Germany's war power while losing only a portion of their own, leaving them with remaining forces in being after Germany's were destroyed.  
 
Therefore, any process or weapon system or campaign that traded resource only *at* the ratio of the rival economies, was under-performing the average strategic exchange efficiency of the whole Allied war effort.  And by a considerable margin, since the Allies ended with large military forces etc.  So not only was the strategic air campaign way less efficient that submarine warfare, it was at least marginally less effective than the rest of the Allied war effort.  Including the ground war above all.  

JonS - I can agree that it is the likely source of the discrepancy, if other sources accounted for 20% of Allied shipping losses.  Seems high to me, but possible.  Mines might be miscounted in that division either way, since most of them are fairly attributed to the u boats that laid them, but weren't around to see the result  At any rate, I don't think it changes the conclusion.  If a u boat got 2.5 merchant ships instead of 3.3 merchant ships, on top of the cost of fielding equal number of escorts to drive them off, it was still costing the allies many times what the u boats cost to field.
 
As for people discussing the relative cost of u boats and merchant ships, a type VIIC (2/3rds of all the boats and the standard model) cost a little under 2 million reichsmarks, or about $450,000.  That is about the price of 2 strategic bombers.  A liberty ship (on the large end of the merchant fleet, but quite numerous etc) cost $2 million, or about the price of 10 strategic bombers.
 
The economic exchange between investment in u boats and the cost and damage they inflicted may be 5-6 times in favor of the u boat (expecting a liberty ship to be about twice as expensive as an average ship sunk by the u boats, in line with the tonnage difference, and perhaps adding 1 times the u boat cost for the escort counters, damage etc).
The economic exchange between investment in strategic bombers and the damage they inflicted may be 3-5 times against the strategic bomber (looking at GDP shares spent etc).
The relative efficiency of the two forms of economic warfare might be somewhere between 15 and 30 times in favor of the u boats, with a figure around 20 times the most likely.
 
There is high confidence that the u boats were at least an order of magnitude more efficient than bombers at costing the enemy resources.
 
Certainly the Germans couldn't continue to get that exchange ratio after mid 1943 and the loss of the campaign against allied ASW techniques etc.
But they still inflicted megatons more damage than they cost - meant literally.  And the Allied strategic bombing campaign against Germany emphatically did not.
 
To Michael - amusing, thanks for that...

Michael E - "what other choices did the Germans have besides packing up and going home?"
 
The economists have determined that everything the Germans extracted in the Ukraine by force during the occupation only came to about the same amount they imported from the region in the previous period of cooperation between the USSR and Germany, which they had paid for with high valued goods of their own.  All the draconian requisitioning at gunpoint only got what they could have gotten voluntarily with a few expensive cameras and some higher end electrical equipment, that fetched fancy prices in terms of cheap, commodity grain.  That's how stupid force is compared to voluntary cooperation via trade.
 
Just saying.  Evil and ruthless doesn't mean efficient.  It mostly means stone cold dumb.  

Steve pretty much nailed it.

LL was 7% of Soviet wartime output by value. The mix helped too, filling weak spots and relieving bottlenecks in Russian production, notably nitrogen fixing shortages that limited total explosives production, and providing communications gear (both radio and land line, infrastructure like switches etc) that it was hard for the Russia economy to produce in volume. Everyone knows about the trucks and most about the prepared food, which made it possible to draft a much larger portion of the peasantry - though in the worst period 42 etc the rear areas were still starving.

But the scale of the other major effects needs to be understood. The Germans physically occupied territory responsible for 40% of prewar industrial output. Some was evac'ed to be sure, but that number is over 5 times the scale of the LL contribution. Retaking lost ground was more vital than LL, basically. Similarly, mobilization produced year on year changes in narrow armaments output around 40%. Being one quarter faster on that trigger matched LL. Of course it didn't raise capacity, it used it and diverted income from other uses (some of the former, lots of the latter). But the point again is the scale of the changes from economic management decisions and operational ground control, was bigger than the scale of LL.

The biggest things the Russians had going fir them were German hubris as Steve says, and the bare fact if the western allies being in the war. The latter helped not just through LL but by keeping German divisions in the west, by engaging most of the Luftwaffe, by straining the German war economy to produce planes and u boats and bomb repair and aid to Italy etc, that would all have been pointed at Russia instead in a one front war. Both were vital, LL was a modest part of the second.

But no, to the original poster, the early Russia counterattacks aren't really evidence of the conclusion. The outcome of the 1942-3 winter campaign yes, the small 1941 local stuff no.

"that is a very bold and unsupported claim"
 
Bold yes, granted, intended even.  Unsupported I don't think so, I supported it.  You might call it debatable if you like, but not unsupported.
 
As for the effects you trace to bombing, 100,000+ single engine fighters won the air war over Germany, not the ~50,000 heavy bombers.  And no, the bombers didn't significantly reduce German fighter output.  They forced some dispersion but final assembly really didn't need special equipment and was readily dispersed.  The Germans ran out of pilots not airframes in any event.
 
On the decline in German war output in late 1944, it was caused less by bombing than by manpower - they only met the losses of the summer of 1944 by sweeping out the actual war economy of men, and that is the single biggest cause of the decline in production in late 1944.  The only bombing caused shortage was oil, which mattered certainly but didn't directly cause the output fall.  It mattered primarily by making the air victory permanent, secondarily by restricting the effectiveness of German armor late war.  But it was still pretty effective even on shoestring supplies.
 
Yes the Germans spent plenty on air defense.  But a heavy Flak gun cost 1/16th what a heavy bomber sets you back, and on average took out half a plane apiece.  The Germans were not going to go bankrupt at that rate of exchange.  The bomber only delivered maybe 10 bombs within a mile of the intended aim point over its whole operational life.
 
Also, your estimates of the cost of the bomber offensive to the US and the UK is low. "As much as 40 to 50 per cent of the British war effort went into the RAF and the USAAF consumed as much as 25-35 per cent of US industrial output. The USAAF grew to 2.4 million men in June 1944, or over a third the size of the US Army. The operational costs were steep. RAF Bomber Command lost 8,325 bombers and 64,000 casualties among their aircrew. The USAAF lost 8,237 bombers and 73,000 crew members which exceeded total USN and USMC casualties in the Pacific."  Another key finding of the post war survey was that the whole bombing campaign was much more "late-weighted" than popular histories let on, with most of the tonnage dropped after the full defeat of the Luftwaffe.  "“It is of vital significance that of all the tonnage of bombs dropped on Germany, only 17 percent fell prior to January 1, 1944 and only 28 percent prior to July 1, 1944”.  German military output was still rising throughout that period, and only peaked in the fall of 1944.
 
Early in the war, the British estimated that in night bombing operations, only one sortie in three got within 5 miles of its intended target, with a factor of 4 variation around that mean determined largely by visibility (moon or no, cloud cover or clear).  They were proud of the fact that they got that up to 60% during clear weather by mid 1944.  Of their own losses under the Blitz, the economic impact in the worst month was measured by British economists and came out as less than that caused by ordinary holidays shortening the work-week in certain months - it was within the calendar-scale variation, in other words.
 
It took an average of 5 sorties to *wound* one civilian on the ground, and 13 to kill a single German civilian.  The Allies were trading 1 Allied airman (and about $20,000 worth of airplane) for 2 German civilians killed and 5 wounded over the whole course of the bombing campaign.  That would only have been an effective exchange if the targets had all been military personnel.  Since they disproportionally were not and the Germans didn't draft a quarter of the whole population, they were actually losing military manpower on the exchange, net net.  It took tons of bombs dropped to wound a single civilian.  And that was for the large majority of the bombs which were missing their intended aimpoint by miles but still managing to hit entire cities.  The main economic effect was to destroy about 20% of the German housing stock - but with 15% of that only being leveled after mid 1944 (see above on the timing of the tonnage delivered).  The Germans simply didn't rebuild that housing.  This inflicted considerable hardship on German civilians in the last year of the war, on top of the civilian casualties it caused directly, but that was its primary destructive effect, and it "lands" quite late.
 
On the whole, the Allies would probably have been much better served by a tactical air force focused on both winning air superiority and supporting the armies in the operational battle area, using lots of fighters and fighter bombers along with medium bombers.  The long range of e.g. the B-24 was certainly useful for ASW, and some of the Allied medium types were inefficient in comparison.  (The B-26 was a dog, for example, about as expensive as a B-24 with less payload and much less range).  With less invested in that whole airforce and more of the logistics thus freed from bomb supply and the like, instead used to avoid the artillery ammo shortages of the second half of 1944, and generally increase the supply of 155mm shells fired at German military personnel, rather than 500 lb bombs dropped on German civilians.  A battalion of 12 such howitzers cost the same as 1 4 engine bomber, and lasted considerably longer than 25 missions.
 
This may seem a bold claim, but I think all the best post war operations research bears it out.  The strategic air role vastly overpromised and overclaimed during the war, with senior airmen ideologically focused on claims they could win the war on their own if only allowed to ignore all other missions.  They couldn't and they didn't, and if they had subordinated the air force to the army, it would have served their national militaries at least as well as it did, and could have done so, effectively, with only half or so of the resources actually lavished on the arm.  The four engine bomber was the poster boy of that allocation decision, and I regard it as pretty clearly a misallocation.  (In hindsight, obviously.  But objectively so). 

Effective fire beyond 2 km is practically entirely restricted to claims by the firing side, with nothing verified by the side being fired at.  Even then it is generally restricted to ace quality shooters.  
 
You won't find operational importance cases of a side reporting they were stopped and defeated by ranged enemy AT fire at ranges beyond 2 km.
 
The closest you will get to that is AT guns in particularly open terrain, causing some loss at ranges up to 1.5 km.  For example, the famous 88s in the desert at Halfaya pass opened fire at 1600 meters, and later again at 1400 meters against a second attack.  But they still inflicted most of their kills considerably closer, at half those ranges.  Those ranges can be verified by loss reports on the losing side, rather than claims by the shooting one.  You should never believe own-side claims about extreme range fire.  They are never trustworthy.

Effective fire beyond 2 km is practically entirely restricted to claims by the firing side, with nothing verified by the side being fired at.  Even then it is generally restricted to ace quality shooters.  
 
You won't find operational importance cases of a side reporting they were stopped and defeated by ranged enemy AT fire at ranges beyond 2 km.
 
The closest you will get to that is AT guns in particularly open terrain, causing some loss at ranges up to 1.5 km.  For example, the famous 88s in the desert at Halfaya pass opened fire at 1600 meters, and later again at 1400 meters against a second attack.  But they still inflicted most of their kills considerably closer, at half those ranges.  Those ranges can be verified by loss reports on the losing side, rather than claims by the shooting one.  You should never believe own-side claims about extreme range fire.  They are never trustworthy.

On amatol, 80/20 gives about 90 of the effectiveness of TNT, while 60/40 gives about 80 of that effectiveness. If the point is to stretch nitrates into overall explosive power that is worth it. If the point is to pack explosive power into each shell it is not. The US used 100% TNT for most arty rounds throughout the war. Some common rounds went to 80/20 amatol. The Germans used 60/40 as a matter of course.

This combines with filler weight differences to make for quite a difference in the explosive power of otherwise similar rounds. Both the US and the German 105 rounds weigh 33 lbs. CM gives them the same blast rating. But in reality the German round was something like 10% 60/40 amatol while the US was 14% TNT. Meaning 4.6 vs. 2.65 lbs TNT equivalent, or more than 50% higher for the US round.

If the CM blast rating of the US 105 were up to a third higher than the German, it would be perfectly realistic. Similarly, a US 81mm mortar round could easily have as high a blast rating as a German 75mm tank round, instead of the half it has in CM. But CM blast ratings contain only minor corrections for shell characteristics besides overall weight.