Since PhysX has been added to the engine, have you in plan to improve the destruction of the environment (like walls, trees, etc..)? I mean, see a fence that literally "falls" because it gets hit by a tank is quite funny. Why don't you use the damage model of others games likes Company of Heroes or Bad Company 2, where when you hit a stone wall, it explode in pieces and leaves a "destroyed model" of it. Is not realistic for sure, but is way better than what we have in Arma 2.
Just because a feature is used in an arcade game, doesn't mean that it can't be used in a simulator as well. Because it looks like the way most of you thinks, "This feature is in a mainstream game? Well, we are not gonna use it then!", at least for what i've seen.