Rocket-Man

The game UI should never "lie" to the user. Either remove the feature or fix it. It's silly to claim the UI showing one thing while it's actually another is a "feature" and not a "problem".
 
I've been playing CM for almost 20 years. I have experience. Telling people to "play more" to overcome obvious deficiencies in the UI keeps the game as a niche market. You might want the UI to be difficult to understand and use, but the vast majority of people who play games don't.
This is a common argument when people make suggestions to improve a game's UI: "It would make the game less realistic".
Games by their very nature are unrealistic. You want to make CM more realistic? Remove the LOS feature completely and only show the parts of the map that units can see. Or just show what the Commander can see and make him try to figure out the situation from runners, shouting, and radios (if he has one). That's realism. But who would play a game like that? Even less than currently play CM.
If a commercial game is not fun, it's not going to be a success. Improving the LOS feature would go a long way to improving the CM experience for players and make the game more fun, which would translate into more sales.

I would like to see some improvements made to the LOS system.
1. When LOS is measured from a waypoint, show the LOS line from the waypoint and not the unit's location.
2. Allow units to area target buildings if they can clearly see the building even if they don't have LOS to the center of the ground level action space the building is on.
3. LOS should always be reciprocal. If location 1 can be seen from location 2, than location 2 can be seen from location 1. This is not always the case in game. Spotting might be harder from one location to another, but reciprocal visibility (baring some special equipment not available on the battlefield in any CM title) is always there in reality. It might be almost impossible to get a hit on a unit that is firing through a small opening for example, but the location the opening is in can always be targeted.
4. If LOS can be drawn from a waypoint to a location, then a unit that moves to that waypoint should always be able to see that location. It's all too common to check LOS, move a unit to that position and then find out that it can't see the location it could with the LOS tool.
5. I know this problem was present in the early days on CMx2, and the Devs "solved" it by making sure trees didn't move after setup, but I still find it common to check LOS during setup only to find a unit can't actually see those locations when the game starts.
6. Allow LOS to be measured from different observer heights: Prone, kneeling, standing, bow vehicle level, turret vehicle level, couple vehicle level. Or just allow a height to be specified: 0, 0.5, 1, 1.5, 2 meters.
6. Fix the LOS line that shows where the terrain blocks the LOS. It in not consistent in showing the actual location where the LOS is blocked.
7. A pie in the sky suggestion I know won't be implemented: Shade all the locations that can't be seen from a location darker and the ones that can be seen lighter. I know this is computationally expensive, but it would improve speed of gameplay enormously.
 

Thus the need to spend some effort working on the LOS system for game engine 5.

The game UI should never "lie" to the user. Either remove the feature or fix it. It's silly to claim the UI showing one thing while it's actually another is a "feature" and not a "problem".
 
I've been playing CM for almost 20 years. I have experience. Telling people to "play more" to overcome obvious deficiencies in the UI keeps the game as a niche market. You might want the UI to be difficult to understand and use, but the vast majority of people who play games don't.
This is a common argument when people make suggestions to improve a game's UI: "It would make the game less realistic".
Games by their very nature are unrealistic. You want to make CM more realistic? Remove the LOS feature completely and only show the parts of the map that units can see. Or just show what the Commander can see and make him try to figure out the situation from runners, shouting, and radios (if he has one). That's realism. But who would play a game like that? Even less than currently play CM.
If a commercial game is not fun, it's not going to be a success. Improving the LOS feature would go a long way to improving the CM experience for players and make the game more fun, which would translate into more sales.

@Erwin, don't you think the 'gods eye' view can be both a blessing and a curse because LoS can be very misleading from that view. I would at least like a button I could press that gave me LoS with the terrain features blacked/grayed out I can't see from my unit's position. Having to drag the cursor around is time consuming. 

Comparing the outcome of real war actions with the ones modeled in the game,I always notice that the casualty rate is usually quiet high in the game compared with the real stuff.I mean experienced players not playing boldly and trying to do it as close as to real combat procedures.A part from the AI behaviour in one side,I think there is a reason for that.In my opinion,infantry in the game don't have the same chances of survival as in real life due to the poor modelling of defensive works or the,sometimes,difficulties in getting apropiate cover in terrain features.You can't find parapets in the game,fortified houses and underground basements in buildings nor underground shelters; it's told the protection in shallow trenches and foxholes is abstracted but I m not quiet sure at which degree.What's more,some weapons seem to be overpowered,like the SMG which are deadly accurate and lethal beyond its teorically effective range
This issues should be improbe(probably in a CM3?) in order to make the game more challenging and realistic.This game,differently from others,is focused on infantry which I just like it so,why not to care more about our dear pixeltruppen?.What do you think about it?
 

No - it's happening without a cover arc. Units taking fire (but not actually having a solid contact) will continue "Hunting" until they get enough suppression - typically until a man gets hit.
This makes it impossible to advance cautiously in an area with short visibility. I would like to have an option for the unit to stop the moment they take fire - any fire at all.

I really liked the LoS tools in the Graviteam Tactics games. Sort of a colored arc what you could and couldn't see.