I know these issues may already be addressed, but I just want to go over some of them that occur almost every round. When the Hell Zombies come, usually the last one gets stuck in an unreachable place. When spectated, it is usually surrounded by a black mass outside the map area. Sometimes, we take up to 20 mins to eliminate the final Hell Zombie or we may have to all quit and come back. The other problem is being stuck in places, like the tunnel beneath the Church level. I do not know what can be fixed/not fixed in this mod, but just wanted to make some issues clear. Fill free to reply with other problems/solutions/mindless stuff that usually follows many forum posts. 
layful: Thank you!
layful: Thank you!