The Call of Duty: World at War Map Pack 1 expands the addictive COD multiplayer experience with four new maps. Players fight through the burning streets of Berlin in “Nightfire” and take up battle positions in fortified Japanese bunkers in "Knee Deep." “Station” offers a bombed out underground train station, and the Nazi Zombies return in “Verrückt” (Zombie Asylum) featuring more weapons, new Perks-a-Cola machines and electroshock defenses.