The juggernaut that is Call of Duty: World at War Map Pack 1 continues to roll, with Activision Publishing and developer Treyarch announcing today that worldwide sales for the downloadable map pack have cleared the two million download mark, on both Xbox LIVE and the PlayStation Network (combined).

"This is a huge milestone and we are so appreciative of our incredibly supportive community who continue to play and enjoy the game," said Mark Lamia, Studio Head of Treyarch. "We're hard at work on Call of Duty: World at War Map Pack 2 and look forward to delivering that in June."

Call of Duty: World at War Map Pack 1 contains four maps (Nightfire, Station, Knee Deep and Verrückt) and is available on Xbox LIVE Marketplace for the Xbox 360 video game and entertainment system from Microsoft for 800 Microsoft Points and on the PlayStation®Store for the PLAYSTATION 3 computer entertainment system for £7.99. Call of Duty: World at War is rated 15 by the BBFC.