Hi, I have a buyable door that starts the spawners in a zone called zone1. This works fine, the door opend and zombies start spawning in the new area, but a little while later, the game will freeze up 3 times for about 2-5 seconds each. I'd really apreciate any new leads/ideas as to what might be causing it. This problem has had me scratching my head for 2 days now.

how many zombie spawners do have  place in zone1   to many some times will make the game  freeze up.