The Zeus Cannon is the strongest weapon against Zombies and the most effective for clearing a massive horde or when you are trapped and cornered.
you cannot upgrade the Zeus canonn because the Zeus cannon is the upgraded version of the thunder gun and you cant upgrade a gun twice
It's impossible, to get the Zeus cannon, you need to get a thundergun from a random gun box, then you need to pack-a-punch it. You can't earn enough points on the first round, to unlock rooms and get the weapon
There is the Thundergun(Upgraded is Zeus Cannon) and a new freeze gun, a.k.a. death to zombies I don't know too much about it.
Porters x2 ray gun and zuse cannon
You go to a cannon and blow up the stuff on the runway
yes the cosmic silver back shows up at lv.70,72 or 73 and you have to defend yourself. the cosmic silver back is unkillable unless you have a Zeus cannon and raygun.the rounds last 5 minutes and then the next round starts.
yes it is good
In my opinion, Steve Schwindt does great black ops videos, as well as MuzzaFuzza and various other people. Alot of good black ops videos appear on Machinima
kill_struck
ZORK ALIEN MODE ALICIA Those are some good cheats for black ops.
There are different opinions for different guns in zombies black ops,But my opinion yes it is good for about rounds 7-13
look up mods for black ops on youtube good luck