Treyarch recently released a Call of Duty: World at War trailer for the Der Riese zombie multiplayer map, which is set to appear in the third map pack for the game.

The trailer features hordes of undead Nazis, zombie dogs and… a cymbal crashing toy monkey laden with dynamite. Interesting.

[Update:]

A release date for the third World at War multiplayer map pack has been announced to be August 6th on both the PlayStation Network and Xbox LIVE Marketplace (next Thursday), and will cost $9.99 and 800 MS Points respectively.

Watch the Der Riese map trailer below:

You can also watch some in-game footage from the maps releasing with Call of Duty: World at War Map Pack III over here.