Treyarch has released a new developer video which details all of the stuff that will be in the
First Strike DLC pack for
Call of Duty Black Ops. The TLDR version is that it contains 4 new multiplayer maps along with one new zombie map. The maps do look pretty cool (I'm digging the Berlin Wall map) but I can see the zip lines in the first map becoming a haven for snipers looking for easy kills.
The map pack will be available on Xbox Live first on February 1st and will set you back 1200 points (i.e. $15).