Yeah, when I had my mic IL2 would be one of the games I would use it for (along with Burnout Paradise). But in a game like Call of Duty I would never use it if I weren't in a party with friends.
But On Topic: I think I'm going to have to be using the IL2 a bit, to unlock some planes, and to get the achievement. But I'll try not to just fly straight and let my gunner do all the work. That would be boring anyway.