You have to have playstation network or xboxlive account.
No there isn't! But you can play with other people online
if you go into zombies and do split screen you can.
no
no sorry
Black Ops does have zombies
Yes there will be zombies and zombies campain
cod: world at war & cod: black ops
No, you can only play single player on the CoD Black Ops campaign.
There is definitely zombies in COD BO, even though it was made by different people to WaW.
yes
the new black ops has