Before America dropped the bomb on Japan, a squad of commandos infiltrated an island in the Sea of Japan to exfiltrate a Japanese scientist. He was working on a secret weapon codenamed Aurora. But before the commandos could escape the island, Japan activated Aurora and killed everyone.
Battlefield: Bad Company 2 takes place in the present day after the events in Battlefield: Bad Company . The four members of B-Company, better known as Bad Company, Privates Preston Marlowe, Terrence Sweetwater, George Haggard, and Sergeant Samuel Redford are sent behind Russian enemy lines to secure a device related to Aurora. But although they managed to escape Russian soldiers and completed their supposedly final mission, the device turns out to be a fake. Consequently Army General Braidwood assigns them to a special operation of stopping Aurora. The single player campaign puts the player into the shoes of Private Preston Marlowe, sending him off to uncover the mysteries surrounding Aurora in a typical first-person-shooter-fashion. The player tries to fulfill various objectives while gunning down enemies using a huge arsenal of real-world military equipment but limited to only carrying two main weapons and a side-arm at the same time. During the course of the game, the player unlocks new weapons by finding them during his missions, granting him the ability to equip them from then on at every supply drop. As in previous installments of the Battlefield series , the core of the game is again the class-based and team-based multiplayer for up to 32 players, divided into squads with four men each. Four game modes are available: Rush, Conquest, Squad-Rush and Squad-Deathmatch. Each mode can also be played on "Hardcore"-difficulty, deactivating the cross-hair, the mini-map and such.
The game features four classes: Assault, Engineer, Medic and Recon. Each class has their own set of weapons and gadgets. The player gets experience points for killing people, capturing flags, fulfilling objectives and earning achievements like killing 7 enemies in one round with a light machine gun. With these experience points, the player levels up his class to unlock new stuff as well as his overall rank.
The game is infantry-heavy, but vehicles like bikes, tanks or helicopters stand ready to be used in the fight. Tanks are especially useful to take full advantage of the so-called Destruction 2.0 system, which allow the players to take down whole buildings if enough fire power is used. The health system is a mix of using med-packs and automatic healing.