I personally dont like this many zombies because it is almost impossible, especially at night. Last time i was clearing a small military baracks camp ( sw of the nw airfield ) with a buddy. We killed loads of zombies and then we got into a building. We were sure we killed em all except from 1. When i shot that monkey atleast 25 or more runners came and just overran us. Where they came from.. I dont know but it was a pain in the ass. More zombies is alright, but or make em slower so they are easier to shoot, or put the respawn time of em down because it looks like you can't clear a barn in the middle of a open field without thousands of zombies spawning all around you. I personally dont even play in the the evening aswell anymore because its actualy to difficult on daytime already.