"V-vere are zey?"
"Vere'd zey come from?"
*howl* *mp40 reload sound*
"Get reddy zeir coming"
And then you get to watch the zombies slaughter to first few Jerries in the room below you and you can assist either side by lobbing 'nades down to them.
The game was great fun if you didn't take it too seriously. Of course its nonsense, but at least they didn't try to sell it as a realistic piece unlike some other ww2 games that aren't much more realistic but lack the zombies.
I never had the feeling that it was too atmospheric though. It was too stupid for that. Zombies with nazi-insignia on their shields just seem silly to me. Fun? Yes, definately. But atmospheric? No. Maybe when the first legless dude broke out of his cell, but that's about it.