No you cannot. i think that isn't that fun when your friends come over, but that is just my opinion and you cannot do this because if your friends isn't that good then it would be unfair to the team if he get's like 13 death 1 kill. if you know what i mean.
Wack dude, if you want to, you sure can.
No. It's a single player campaign. If you want to play with two or more players, try the Multiplayer games, or a Zombies carnage.
I have both COD Modern Warfare 1 and 2 and i know that you can play online in both, but Modern Warfare 2 is better :)
no.
In Call of Duty: Black Ops, to go on multiplayer you have to go to multiplayer on the menu that says: CAMPAIGN MULTIPLAYER ZOMBIES OPTIONS
you can get it at campaign or unlock it on multiplayer
It will have Nazi Zombies, Campaign, and Multiplayer. It will be called Black Ops.
you select campaign, multiplayer or zombies and play
You can in campaign, but not in multiplayer.
Yes it does have online multiplayer like Cod6 it also has campaign
for multiplayer you must do it online to unlock them and for campaign it will unlock if you do what is required to unlock the camouflage.
if you mean offline then no sorry well if it was i would be playing it but i am sorry :(
Not all of it is multiplayer there is a single player campaign mode and then a multiplayer mode. There might be a third part to it but we won't know until it comes out.
Not in the campaign. you can in Nazi zombies and in multiplayer.
No, you can only get this achievement in single player campaign or zombies.