I think they should loop it, they have two or three more maps, showing the team leave the Dr. but then he is joined by like a nazi team that survived der ries. then have it show that the team dies in a new map, but the Dr. travels to the ipod naucht der untoten after he is bitten. also on one map, it should randomize wether you are the tank team with the Dr.'s replacement, or the Dr.'s nazi team and you against your will have to save (or kill) the other team to get to safety. I gave you the idea, you fill in yours to set a good potential next chapter to this awesome story. BOOM!!!!!