Activision has officially announced the third Call of Duty: Black Ops map pack, to the surprise of everyone who wasn't online yesterday. The "Annihilation" pack, out June 28 on Xbox 360, and a contractually appropriate time later on PC and PS3, adds four new multiplayer maps: Hangar 18, Drive-In, Silo, and Hazard, along with the requisite Zombies map, "Shangri-La."

Treyarch studio head Mark Lamia called "Shangri-La" an exotic and mysterious map filled with deadly traps, dark secrets and innovative gameplay that will challenge even the most daring Zombie hunters." It goes without saying that it's also filled with zombies.

To celebrate the release of this map, Treyarch will offer a double XP weekend starting July 1. Now all you have to do is free yourself from all personal and professional responsibilities.