impulse

Call of Duty: Black Ops' first batch of DLC, entitled First Strike, will release on Xbox Live on February 1.

First Strike will feature four new multiplayer maps, including Berlin Wall, Discovery, Stadium and Kowloon. A new Zombie map, called Ascension, will also be included in the download.

Those without an Xbox Live Gold accounts may want to circle January 28-30 on their calendars, because Microsoft will be sponsoring a Multiplayer Unlock event that will give newcomers a chance to try Call of Duty: Black Ops multiplayer even if they only have an Xbox Live Silver account.

No word yet on when PS3 or PC owners can expect First Strike, but we’ll keep you posted.