It means to re-builds the barrier
Wait till the zombies get through the barrier, then kill them. at the end of the round rebuild the barrier. it should give you 10 points for rebuilding the barrier.
World at War was the first to have zombies mode. Black Ops was the second. Black Ops 2 will likely have a zombies mode as well.
complete the every mission
To get the second zombie map, you have to beat the entire campaign.
just keep killing them by shooting them are knifing
Black Ops 2 Zombies is harder but also way funner than Black Ops Zombies.
Black Ops does have zombies
Yes, zombies are back in Black ops.
Yes there will be zombies and zombies campain
black ops zombies just continues after world at war
8 players in zombies