See I see things slightly different - If I had fought in a war and found out a game was being made about the whole experience I would be flattered.
This is because if people forget about the war you fought in then all the pain & suffering will be forgotten. And I find that far more disrepectful than having it as a form of entertainment. As by that logic there shouln't be any films based on real life wars, plus you must remember it depends on the entertertainment medium & how realistic it is/was to the real thing.