
Old one is dead so here we go.
Battlefield: Bad Company 2 is a teamwork based first person shooter. Players can take on the role of an Assault trooper, an Engineer, a Medic, and a Recon soldier. Each with their own distinct roles.
Assault troopers can replenish their teammates' ammo supply, Engineers repair friendly vehicles and blow up enemy vehicles, Medic heal and revive fallen teammates, and Recon soldiers snipe and identify enemy troops with motion sensing mines or spotting scopes.
Battles take place on large scale maps (Heavy Metal being the largest where you would have to run 1 km to go from one flag to another in Conquest with more land beyond that) with vehicles around to get the edge on the enemy team. Vehicles range from APCs, to tanks, and more.
Bad Company 2 runs on the Frostbite 1.5 engine which evolved Destruction 1.0 to Destruction 2.0 allowing players to take down entire buildings. This allows players to change the battlefield dramatically. Discovered a camper throwing a frag party inside a building? Toss some C4 on that stuff and watch the crumbling house collapse on the camper.
Along with recent Battlefield games, Bad Company 2 uses projectiles instead of hitscans with guns, but Bad Company 2 brings bullet drop into the mix making sniping require more aiming than before since you have to aim
above your target to get a headshot at long range.
Also, BFBC 2: Vietnam is on it's way! The expansion is set to release on December 18th for the PC, and December 21st for consoles. This brings 4 news maps (and a 5th one coming soon), 15 new weapons, and 2 hours of music that plays in vehicle radios.
Images
An American Assault trooper heading to the enemy base at Arica Harbor.
A couple of Su-25s and a Mi-28 Havoc in the air above Atacama Desert's shipwreck.

Blowing a building up with C4.
If you feel more info should be added to the OP, feel free to ask.