I had my map working but there was no models in it, so i added my custom models in and then it went:
I didnt touch any scripts which makes that error confusing to me

Its hard to tell what the error is just by reading the error that pops up. Could you post a pic of the error in the console?

check your mapname.gsc see if you have included this:

#include common_scripts\utility;
#include maps\_utility;
#include maps\_zombiemode_utility;
#include maps\_zombiemode_zone_manager;
#include maps\_music;
#include maps\dlc3_code;
#include maps\dlc3_teleporter;

here