This is my setup for dynamic Toxic Zones with AI wich i use on Trappers Winter Paradise.
Add the content of these files into the respecive files. mpmissions/empty.Bitteroot/db/events.xml mpmissions/empty.Bitteroot/cfgeventspawns.xml
You must have the mod Dayz Expansion to use AI.
Always verify your files before uploading them to your server.
Enjoy.