Battlefield: Bad Company 2 Limited Edition features six special gameplay unlocks that give players a tactical advantage in multiplayer matches from the minute they fire up the game. Sold at the same price as the standard version of the game, the Limited Edition delivers extra firepower, radar and armor for the vehicles. Additionally, the tracer dart attaches to any enemy vehicle and allows RPG-toting teammates to track, lock-on and destroy their target. And seasoned veterans of Battlefield …