The idea isn't bad, but I'm having a hard time seeing this play through the ZE maps we currently have uploaded.

1) Most ZE's rely on holding at a spot until X amount of time passes and a door/path opens. If humans have extra speed, they'd be outrunning even the fast zombies to these checkpoints, and (most likely) have the time needed to hold out before zombies get close enough. If there were a way to play with the map-hold times, possibly. But I think those are already pre-set into the maps based on the designer's code rather than server code?

2) What happens when a human gets attacked by zombie? Would they instantly become infected, or is there a certain amount of times the person could be hit before turning? If the former, I don't see the current level of zombie players lasting long enough, even with modded attributes >.>...

3) While this might be fun for humans playing with the different mod settings, would it be just as fun for the zombies that now have to chase after a faster/more evasive/and harder to detect prey than they already do? All this being done on a linear ZE map where zombies can't flank or get in front of the humans?

If you can layout a game-play that outlines some of these concerns a little better, I'd be more willing to get behind it.