Activision and Treyarch have announced the Call of Duty: World at War Map Pack 1, that is now available for download on Xbox 360 and PlayStation 3.

The companies say players will fight through the burning streets of Berlin in "Nightfire", take position in the deadly jungles of "Knee Deep" and carefully traverse the bombed out underground of "Station".

In addition, the pack will include a "heart-pounding" addition to the four-player co-op Nazi Zombie mode with "Verrückt" (Zombie Asylum).

The map pack is available for 800 Microsoft Points or for PS3 owners for £7.99 and will be available for PCs at a "future date".