If you have Call of Duty: Black Ops on the Xbox 360 your in luck because the First Strike DLC map pack goes on sale February 1, 2011. The map pack will cost $15 and includes 4 new multiplayer maps and 1 new zombie map.
To better explain the content in the map pack, Activision has released this trailer to fill you in. After you watch it, head over to Amazon.com and pick up some Microsoft Points. Your going to need them.