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      Special Upgrade 4 Tech Tips   12/27/2016

      Hi all! Now that Upgrade 4 is out and about in large quantities we have now discovered a few SNAFUs that happen out in the scary, real world that is home computing.  Fortunately the rate of problems is extremely small and so far most are easily worked around.  We've identified a few issues that have similar causes which we have clear instructions for work arounds here they are: 1.  CMRT Windows customers need to re-license their original key.  This is a result of improvements to the licensing system which CMBN, CMBS, and CMFB are already using.  To do this launch CMRT with the Upgrade and the first time enter your Engine 4 key.  Exit and then use the "Activate New Products" shortcut in your CMRT folder, then enter your Engine 3 license key.  That should do the trick. 2.  CMRT and CMBN MacOS customers have a similar situation as #2, however the "Activate New Products" is inside the Documents folder in their respective CM folders.  For CMBN you have to go through the process described above for each of your license keys.  There is no special order to follow. 3.  For CMBS and CMFB customers, you need to use the Activate New Products shortcut and enter your Upgrade 4 key.  If you launch the game and see a screen that says "LICENSE FAILURE: Base Game 4.0 is required." that is an indication you haven't yet gone through that procedure.  Provided you had a properly functioning copy before installing the Upgrade, that should be all you need to do.  If in the future you have to install from scratch on a new system you'll need to do the same procedure for both your original license key and your Upgrade 4.0 key. 4.  There's always a weird one and here it is.  A few Windows users are not getting "Activate New Products" shortcuts created during installation.  Apparently anti-virus software is preventing the installer from doing its job.  This might not be a problem right now, but it will prove to be an issue at some point in the future.  The solution is to create your own shortcut using the following steps: Disable your anti-virus software before you do anything. Go to your Desktop, right click on the Desktop itself, select NEW->SHORTCUT, use BROWSE to locate the CM EXE that you are trying to fix. The location is then written out. After it type in a single space and then paste this:

      -showui

      Click NEXT and give your new Shortcut a name (doesn't matter what). Confirm that and you're done. Double click on the new Shortcut and you should be prompted to license whatever it is you need to license. At this time we have not identified any issues that have not been worked around.  Let's hope it stays that way Steve
    • Battlefront.com

      Forum Reorganization   10/12/2017

      We've reorganized our Combat Mission Forums to reflect the fact that most of you are now running Engine 4 and that means you're all using the same basic code.  Because of that, there's no good reason to have the discussion about Combat Mission spread out over 5 separate sets of Forums.  There is now one General Discussion area with Tech Support and Scenario/Mod Tips sub forums.  The Family specific Tech Support Forums have been moved to a new CM2 Archives area and frozen in place. You might also notice we dropped the "x" from distinguishing between the first generation of CM games and the second.  The "x" was reluctantly adopted back in 2005 or so because at the time we had the original three CM games on European store shelves entitled CM1, CM2, and CM3 (CMBO, CMBB, and CMAK).  We didn't want to cause confusion so we added the "x".  Time has moved on and we have to, so the "x" is now gone from our public vocabulary as it has been from our private vocabulary for quite a while already.  Side note, Charles *NEVER* used the "x" so now we're all speaking the same language as him.  Which is important since he is the one programming them
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voncasey

question on aa

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hi

anyone know if the german sd kfz 7/1 aa halftrack with 4x20mm guns can shoot at aircraft in front of it

says it is 'rear facing guns' so i wasn't sure how to postion if using it for aa

thanks

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These are good questions as I tried putting them on higher ground with great fields of view, and also close to the units I was trying to defend. My only conclusion was that one needs 2+ AA units covering friendlies to be "reasonably confident" of the effect of AA on attacking aircraft.

My questions:

1) When firing at aircraft does placing AA in short LOS terrain limit firing at aircraft, or does the system calculate that since the unit is firing into the air it can see and shoot ok.

2) When you surround your units with AA, is there an enhanced "triangulation effect" on attacking aircraft?

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None of the halftracks with rear-facing AA cannon can fire in a forward direction. However, the gun mounts will swivel through perhaps 315 degrees, with the remaining 45 centered on the cab. The halftrack will also maneuver in place to allow you to get a shot off in almost all situations. Place it however you like, and you should still reap the benefits.

Mobile AAA assets, including Wirbelwinds, are generally light skinned. I would recommend keeping them within 500 meters of your armor, but out of the line of enemy fire. You don't want to lose your AAA to a few bursts of long range MMG fire. In addition, if you know your opponent is going to use aircraft, keep your vehicles well spread out.

As Erwin noted, you want more than one AAA asset to actually have a chance of hitting the attacking aircraft, but if you want to save points, only get the one and keep it segregated. There are no guarantees here, but it seems that aircraft target AAA vehicles, then armored vehicles, then exposed guns, and lastly infantry. Planes are not a cheap purchase in QBs, and if you can trade a 7/1 for a pair of 1000 lb. bombs, you've come out ahead.

Placing AAA assets in terrain will limit their ability to fire on incoming aircraft. I wouldn't put them in anything more enclosing than a patch of scattered trees. Also, while I don't have statistics to back it up, it does seem that placing units in a triangle increases their rate of success. To achieve this effect, one should consider that vehicles with AA MGs will also fire at aircraft. many of the other halftracks (250's, 251's) and most armored vehicles will add an MG to your AA curtain. In my own estimation, quad 20mm is the most effective German AA weapon, followed by 37mm, followed by the single 20mm. MGs are least effective, but if you have a lot, you can occasionally get lucky.

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thanks that helps alot

i have 2 quad 20mm nicely spread out on medium board and a bunch of halftracks, panzers iv and v, and tigers so we'll see how it goes

keeping tankers spread is a good idea too

should be fun

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