Xsnake, I like your maps but I think that you made more op camp spots in ZM01/ZM05. (Camps with open areas cause sniping zombies before they can even get close to the camp)
Please try to do at least two ways to get for all camps.
(it also good for a camp with firecrystal)
And for the "only survivor", the script is right but maybe its a online problem. (with offline it works good)
Is online can cause script problems?
Edit: The only survivor script works but not good.
this game (30.08) was mission failed and Darksider was spectate.
And the debug mode showing one survivor.
Seems like player Id problem, no?
(Try to check the debug mode by using 'playerInfo' command to see if the id is right when there is one survivor)