Update: Shacknews reports World at War's Map Pack 1 DLC has sold over 1 million downloads across both the Xbox 360 and PS3 since launch.

According to a press release, DLC for Call of Duty: World at War has set a first week sales record on Xbox Live Marketplace. Proving you don't need a marketing team to dream up whimsical names to sell product, Map Pack 1 has been downloaded ... well, the exact number is unclear, but it's apparently a lot. In fact, since the DLC's release, over 150 million multiplayer sessions have been played.

The Call of Duty franchise isn't new to the Xbox DLC record book, as Modern Warfare's Variety Map Pack previously shattered records with over 1 million downloads within the first 9 days of release. World at War - Map Pack 1 (which leads us to believe more is on the way) is available now for the Xbox 360 and PS3 for 800 / $9.99.

This article was originally published on Joystiq.

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