The online co-op features two modes: combat training which is just like the game's versus modes against bots for up to 6 players and a returning Zombie mode which is for 4 players.
"Call of Duty Black Ops is the next installment in the thrilling Call of Duty franchise. Packing an amazing singleplayer story that will see you fight across the globe in locations such as Cuba, Vietnam and the Arctic.
Now you will witness the birth of the Elite Special Forces and take part in off-the-record missions using unconventional weaponry to get the job done!"
This page contains co-op info for Call of Duty: Black Ops on the PC. All information about Call of Duty: Black Ops was correct at the time of posting. Information is subject to change. If you see any errors please email us.