¬†Activision Blizzard sent out word that Treyarch’s second map pack for Call of Duty: World at War has sold over 1 million downloads during its first weekend of availability.

This includes sales from both Xbox Live and PlayStation Network.

The map pack contains four maps (Bonsai, Corrosion, Sub Pens and Shi No Numa) 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 $9.99.

World at War has enjoyed considerable retail success since its launch towards the end of last year.