How about, new, creative map designs to make Zombies a little bit more exciting.. For example, the majority of us find a nice place to camp and all sticK together. How about having an electronic door/gate which has to be opened by pulling four levers, but.. The levers are in four seperate rooms and they have to be pulled simultaneously. "Easy" you say? There's more.. When the levers are pulled the door/gate opens but at the same time shutters come down that isolate each of the players in their rooms where they must each deal with three or four windows until the shutters open after three to five rounds and they can regroup and advance through the newly opened door/gate..
This is the sort of thing I'd like to see. Along with incentives to make players strive to get to later rounds.. I.e. A door that will only open once you reach round 30, and inside it is a nice shiny new gun and.. The Stopping Power Cappuccinno Machine!
I'm real sorry the post is so long.