Okay, in my opinion these fast zombies from the last patch are pretty good, before the zombies weren't a threat, they just were annoying if you didn't had an decent melee weapon, now they are much more dangerous, even in small groups(like 3-5),BUT i still can't have any fun with these new zombies with the broken zombie mechanics, like being able to see/hear me from far and going through walls/doors etc. as a lot of people said, it's not fun to try go stealth if they can notice you that easy. As long as you guys fix these simple mechanics i think that the zombie will be a much more interesting part of the enviroment even with a few zombies on the map.