Okay so after looking at this some more, the issue is apparently that survivors are able to use the eureka effect to teleport to zombie spawn rooms somehow. So what I've done is disable the teleport to base option, but I've left the teleport exit option enabled.
OMG! Thank you for fix this weapon
and I have tip for zombies team is: If you found teleport exit DO NOT DESTROY YET! Engineer can use Eureka effect Telefrag to you so.. You need to slowly destroy teleport when it low HP Engineer will teleport and heal his teleport so you can destroy right before engineer taunt to go teleport exit he will teleport as zombies team (I thing?!)