Even though the launch of ‘ Call of Duty: Black Ops 2’s next DLC pack is coming out this week. Treyarch has decided to offer double XP in online matches this weekend on all consoles. And to add to that, Xbox 360 players will have access to a free trial of the game’s Uprising DLC for the weekend. The upcoming pack offers players four maps: Magma, Encore, Vertigo and Studio, including the Mob of the Dead zombies map set in Alcatraz. The DLC first launched in April for Xbox 360, later arriving in May for PS3 and PC, and is normally priced at $14.99. Source: joystiq