I apologize if this has been answered already but I have searched and couldn't find anything. I'm wondering if there is a way to stop spawners from using my start zone and maybe respawn into my next zone once it is activated. The reason is because the next zone is activated through an elevator and once you're in there isn't a way for zombies to get to the zone you are in from the start zone.

When I am in zone 2 the zombies still spawn in start zone and vise versa. Then I get zombie can't find path loop. I didn't want to make a path for them to get from one to the other but maybe I have to? Any suggestions would really be appreciated.

I'd follow this tutorial on adjacent zoning:

http://ugx-mods.com/forum/index.php?topic=9875.0

And try to edit your zoning so your start zone and the next zone aren't adjacent.