ok on your map name all the zombies that enter you first room s1
on the second room name the spawn points s2 and set there flags inactive on
and a target key to the door that goes form the first to second room and call it s2
now zombies wont spawn in the second room until the door is open
on the second room name the spawn points s2 and set there flags inactive on
and a target key to the door that goes form the first to second room and call it s2
now zombies wont spawn in the second room until the door is open