Is there a way to run through zp maps through the console or something, when there are no other players playing? Afaik, there are no bots for this mod, and if you start a new game from the console or otherwise, yer stuck in the waiting area until you get more players. I think Sven Coop is this way too.
There are some superbly-mapped zp levels I'd love to roam through to check them out more closely, but no way to to it unless you're in a game
(there are also many awfully-mapped zp levels out there, but the good ones more than make up for the bad )