In my spawn room, I have a barrier and a ground spawning zombie. I have path nodes everywhere but when both zombie spawn, they just sit there and do nothing.

Secondly, once you buy the door out of spawn, the zones have to wrap around the building. This causes me to have multiple of the same zone which I don't know if all of them are part of the same zone, or only one of them is working and the rest just do nothing.

To have a riser behind a window, you have to create a zombie and add these codes:

script_string: riser
targetname: zone1_spawners
script_noteworthy: zombie_spawner

The rest of the code is on the zombie itself, after that, you have to create a script_struct with the following code:

targetname: zone1_spawners_rise

Maybe you will need this to make the code work, it's just a little fix of zombiemode_spawners.gsc:

sorry I fixed this a week ago, the zombies weren't moving because of a few overlapping path nodes I set on accident.