It can but hardly anyone plays it now.
you have to be on xbox live
If you have an Xbox Live account (must be Gold) you can just go to multiplayer in the main menu then go to Xbox live and it will put you into a lobby from there.
If you want to play Xbox Live you go to " Multiplayer " and then you go to " Xbox Live "
go to private match.
On Xbox live you beat all the levels then go to prestige
from the menu, go to multiplayer, then xbox live (or psn, or online) when you get in a lobby it will be next to your name, or from the xbox live (or psn, or online) menu click on barracks it should be next to you name on the right
You go to Xbox live or the PlayStation Store and log on to your account and then download the Call of Duty Black Ops First Strike after paying $14.95 for it
Go into multiplayer select xbox live and then scroll to combat training.
Sorry, but this should really go in the Call of Duty section.
Just hit start when it says so and then go to cooperative and make sure that you have 2 profiles that have XBOX Live. WARNING THIS DOES NOT WORK!!! =P
Go to multiplayer. then when you click on that go to combat training, only works if you have xbox LIVE/playstation network
No now go to bed