Much like the previous games it features classes who imploy various tools to FUCK YOU UP!
New additions!
These defibrillators let you bring back wounded teammates as a medic. The only problem seems that any death is a wound, even the tenth kill after a guy has be brought back with the pads.
These are Claymores. A sniper can use them and they are very neat in that they can be put where you are luring an enemy or used to protect you from being snuck up on as a sniper.
These are really cool. They work like the detpacks from 1942 except they stick to tanks and you can make your own car bomb with them.
The game play functions as follows: Single players can create/join squads or apply for commander. As a player you can request the commander does things and spot enemies on the map, if they are on your screen and you spot the right type it will be revealed temporarly on your teammates map.
As a squad leader you can make requests and order squad to do things. You also can serve as a spawn point for your underlings. If you are in command of a vehicle they can spawn inside that.
As a commander you can place supplies, UAV(Reveals a small circle area to all players), Scan(Reveals the entire map to you briefly, and artillery. You can zoom in and actually watch the battle, and create precision artillery strikes. You can spot anyone anywhere on the map as you would as a single player. You can order squads specfically to defend, attack, destroy, or repair targets. There are rankings that let you unlock decals, new weapons (one per class), and other crap.