I am also in agreement with making it level 5. I was thrilled to have a challenge on the first day. It brought the danger and excitement of looting and not being out alone all night. I was just mentioning to my friends on the game how i almost never die now that the zombies arent prevalent. Well I died the first day, and I was happy about it. I realize it has been 4 since the second day, but horde nights are already more fun than they were previously because of the increased difficulty and I think level 5 will finally bring meaning to them.