To go along with the patch news below, Activision and Treyarch announce that the First Strike DLC for Call of Duty Black Ops is now available via digital distribution. They also announce this kicks off a double XP weekend for the military shooter sequel. Here's the deal:

Call of Duty®: Black Ops First Strike, published by Activision Publishing, Inc. and developed by Treyarch, is now available worldwide for Windows® PC. The first DLC offering for Call of Duty: Black Ops adds five new maps and is available for purchase through Steam, GameStop, Direct2Drive, and other digital download partners.

The DLC expands on the Black Ops experience with new multiplayer maps "Berlin Wall," "Stadium," "Discovery," and "Kowloon." For Zombie fans, Call of Duty: Black Ops First Strike also features an all new Zombie level, "Ascension," where players fight against perk-stealing zombie monkeys, flesh-eating Soviet zombies and more in a trap-filled, Cold War era Cosmodrome.

Starting today, enjoy a Double XP weekend on the PC as Treyarch offers double the normal amount of experience points for multiplayer in Call of Duty: Black Ops.

For additional information and updates, please visit www.callofduty.com/blackops or check us out on Twitter @Treyarch.