The Action Starts Now!

I think that Battlefield Bad Company 2 is COD's equal or even betters their current version. I will just get down to the ins and outs of Battlefield.
As well as its rival, Battlefield Bad Company 2 has four classes of Soldier type:-

Assault - Supply your Squad with Extra Ammo and equipped with 40mm Grenade
              Launcher or C4.

Engineer - Fixes Vehicles like Tanks and Helicopters also equipped with Bazooka
              or RPG.

Medic -   Supply's your Squad with Health pack's and equipped with a Defibrillator to
              revive Squad Members.

Recon -   Sniper enemies from afar and can call in an air strike to take out hard to hit
              targets.