Having the same issue with my game as well as a friend of mine that just got it is having the issue and is annoyed and not really interested in playing the game if that's par for the course.
I played OpFlash and tried Arma1 which is where I first noticed this problem. I have had played with all the aforementioned settings and it is still there and extremely annoying. I so want to love this game but at this point this is a huge sticking point, never mind graphics or game play or potential. It feels as though you are playing in a marshmallow. You'll really notice it if you move from side to side with a weapon. You'll see how it takes a bit of time to reverse directions and after countless shooters and particularily strategy shooters this just isn't acceptable. Please tell me this isn't to simulate inertia or weapon weight as it seems like a bad idea if that's the case. I love everything about this game but that is one major hurdle that will keep me as well as the several friends I convinced to play with me away.
It must be fairly widespread as I have the issue as well as the one friend that already picked up the game on Steam.
