The official Call of Duty website has announced that a double XP weekend begins today for Call of Duty: World at War.
They are celebrating the release of this the “new” Makin map. It will run only this weekend (March 6th till 8th). Every platform will be able to take part in this, which are Xbox 360, PlayStation 3, PC, and Nintendo Wii. It ends Monday morning Pacific Standard Time.
Source: Call of Duty website.