Following Treyarch's earlier announcement of Call of Duty: World At War (PS3, Xbox 360, PC, Wii, DS) breaking the 11 million units sold mark, we now hear that the game's second map pack has already been downloaded more than a million times.

In fact, Activision said that it only took four days for the map pack to surge past the 1 million mark. Good feat, considering it only came out a week ago. The first map pack, on the other hand, took an entire week to break a million. I guess that one's record has now been broken?

The second World At War map pack adds four new multiplayer maps to the WWII shooter and is available for US$ 9.99.

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Related articles:

• Call of Duty: World at War sales break 11 million mark
• Call of Duty: World at War Map Pack 2 available now, devs playing online