If it was my call (and possible) I'd have slower zombies, with some fast ones mixed in. Fast ones run slightly slower than you. Slow ones run about at 50% of your speed. Only about 1 in 25 zombies would be fast though, the majority would be slow. Then throw in the ACE stamina system. Which also makes you have to be careful about what gear you're carrying on your person. That way you can run away from Zombies, but you can only run so far before they can catch up to you, since they just keep shuffling towards you forever. Eventually you have to kill them, but you can lead them to areas that will give you a better chance to not get noticed by other zombies or players. So zombies are still dangerous, but not to the point where you have to slowcrawl through cities to get a can of beans and a coke. And while we're at it, throw in claymore mines to protect camps better, allowing people to have a small camp set up, so they can drop gear and slip in and out of towns for supplies if they needed to quickly. What would be really nice is if it was possible to set up an alert system where if someone sets off a mine, it sends you an e-mail or text to alert you if you're not in game so you can get on to protect your gear. Is it possible in this game? Probably not. Arma 3, maybe, but I have no idea what that game will be capable of now. I know that these things are possible to be put into a game, but not sure if it can be put into this game. I think that would be pretty cool though. Add a sense of realism, and still have danger involved and keep zombies as a threat.