OK, a few quick things on BF3:
1) They fucked up the squad stuff. In BC2, it was kind of hard to NOT be on a squad. It even gave you the option to have it join you into a squad on the loading screen which I almost always used. But now I would say 50% of the average team is NOT in a squad which is SO annoying.
2) I really like the weapons and the vehicles. All very cool. The points system is also impressive and more flexible than most others I've seen. Like you get partial kill assists, partial suppression kills, etc.
3) Suppression fire is pretty big in this game, it's like a new way of keeping the enemy in check.
4) I still haven't figured out the lack of or ability to destroy stuff. Like there are things I thought could be destroyed and it seems they can only be partially destroyed. And then other things seem to take a lot of rockets to really take out. In BC2, you could wipe stuff out pretty quickly. But I guess the range of stuff you can take out is bigger in this game.