Call of Duty: World at War Experience the intensity and brutality of war like never before. Unleash the power of the flamethrower, flame tanks, and other lethal weaponry while battling through the most harrowing campaigns in the Pacific and Europe. For the first time ever in Call of Duty, play Co-Op with up to 4 players on Xbox LIVE. In Multiplayer, compete on Xbox LIVE to complete challenges, gain experience, level up, and unlock perks to take out your opponents.