If you want realism try ARMA 2 ... however, be prepared to not instantly be blowing crap up.. you must make it to the battle field and hopefully back. Plus you can blow buildings up and stuff. A sniper bugging you on a building? Just C4 that SOB heh.. take the whole building with him. Also, alot less kiddie whiners on the mic which is nice. But this is only if you like realism. At least in that game, when you get picked off from a mile away, you have an idea of how it happened, or you realize that oh yeah, maybe I should try advancing behind cover...