yes u can play any mission in coop online. (only missions that u have unlocked in solo mode)
Yes
no it does not
It is online, it even has co-op over the Internet.
Yea... it says "Co-Op" in the main menu...
Yes - you can have a maximum of 4 players in a co-op game.
They give you things like cheats in Co-op Campaign.
get world at war campaign co-op campaign nazi zombies its legitally awsome
iam pretty sure u can
You need to beat campaign and you can play it from mission select or co-operative.
Solo Campaign Co-Operative Campaign Nazi Zombies Multiplayer Options Credits
Sadly, no. All other zombies maps are on Call of Duty Black Ops and Call of Duty Black Ops 2. Hopefully the next Call of Duty published by Treyarch will also include zombies as the co-op mode.
Yes there are call of duty games that have co-op.