Activision and Treyarch have announced that the Call of Duty: World at War Map Pack 1 reached two million downloads on Xbox LIVE and the PlayStation Network. Call of Duty: World at War Map Pack 1 includes four new maps: Nightfire, Station, Knee Deep and Verruckt, It also features the four-player co-op Nazi Zombie mode with "Verrückt" (Zombie Asylum).