Well, my experience with the game is vastly different from yours, then. I experienced some of the strongest team work I've ever experienced in a game, and that was on a system where the majority of players were dead quiet. There was certainly also a lot of bullshit like morons going off to do experience boosting in some corner, but this was well above ordinary for a shooter.
I think the first few days were rough much thanks to the appeal of destruction. A few sessions in, and people were less interested in hijacking the nearest tank just to blow up the nearest building, and more interested in actually completing objectives.
The most annoying thing was, and always has been, the vehicle campers. This is especially bad in a game that gives you a limited crop of the most useful vehicles, but it's my experience that these people will scurry off if you call them on it.
