Return of Zombie Ops is a zombie modification for Call of Duty 4, it features content from Black Ops Zombie mode aswell as from Modern Warfare 3 Survival mode and Ghosts Extinction mode. It's set slightly in the future with some weapons from Ghosts, Black Ops series and Modern Warfare series.
Just some toys for the big boom...
"Achtung, panzer!"
Ohh... waiiiit...
"Achtung, zombie!"
Hehe^^
That doesn't look like a Panzerfaust.
En.wikipedia.org ;)
Oh I was thinking about the WW2 type.