Well, nothing you’d expect, anyway. They are not attacked by a faceless evil or inbred rednecks. They are not infected with a mysterious disease that makes them all go crazy or ravaged by zombies. Okay, that last bit is a lie. But these aren’t regular zombies. They’re fucking Nazi zombies.
These poor students have to defend themselves from the frozen, reanimated corpses of the Third fucking Reich. And, once they find a secret weapons cache, defend themselves they do. The movie knows where it comes from and knows what to do. Sit back and prepare to be delighted.