I just got an email from call of duty today saying that they are introducing 5 new maps and some for zombies!!

Here is the link to the website.
Enjoy!!

http://www.callofduty.com/blackops/dlc-1-first-strike

$15 is not worth it. 5 maps can be made up in a matter of weeks. Plus we the easy porting, and copy-paste databases of modern video-games, it is simply not worth getting it until they lower the price. Anyways, they look like fun maps, I'm afraid Berlin Wall might attract to many snipers who choose not to play the objective. (ARG!)