What things can you do on Battlefield 3?

What are some of the new features on Battlefield 3, and what are the new guns and vehicles. Also are there any new features for online play.|||you can go prone. they are also going to use frostbite 2 so the destruction will be absolutely amazing. as for vehicles and weapons... nothing is confirmed, although you cab expect obvious things like the m1 Abrams and the m16|||huh