Using trigger_multiple for zombie hoard

Game Modding | Call of Duty: Black Ops 3 | Scripting

ChangCow:

I'm using eDeK's script to try and make an area with many zombies but being inside the trigger does nothing. I don't know how to use trigger_multiple though so it might be a simple thing I'm missing. Also I pasted the script at the end of my GSC if that matters. Any help appreciated

Thanks