Hey! Which mods were you using at the start? I can find out why they aren't compatible and get that fixed.

Zombies at the start will kinda hang around until you shoot or do something loud like get in a vehicle. Once they hear you they will start attacking!

They did not move, even after i shot at them.

The modlist is quite long, about 41 mods.
Im gonna test in a few days a shorter list with the mods i want to use

The modlist and Ace Medical is disabled


Aaren's Blast Effects
Aaren's Tracer Fix (RHS)
ace
ACE Compat - GM
ACE Compat - RHS AFRF
ACE Compat - RHS USAF
ACE Compat - RHS: GREF
ACE Compat - RHS: SAF
ACE Compat - SOG
African Factions for CUP
CBA_A3
Community Factions Project (CFP)
CUP ACE3 Compatibility Addon - Terrains
CUP ACE3 Compatibility Addon - Weapons
CUP Compositions
CUP Terrains - Core
CUP Terrains - CWA
CUP Terrains - Maps
CUP Terrains - Maps 2.0
CUP Units
CUP Vehicles
CUP Weapons
Dual Arms - Two Primary Weapons
Enhanced Movement
Immerse
Interiors for CUP
Multi-play Uniforms
Real Engine
RHS: CUP Weapons Compatibility All-In-One
RHSAFRF
RHSGREF
RHSSAF
RHSUSAF
TRYK Multiplay-Uniform Fix
Unit Voice-overs
Unit Voiceovers RHS version
Universal Uniforms
Universal Uniforms: RHS Edition
Vcom AI V3.4.0

Edit.
Mission works without mods now
With mods i waited like 40 minutes, and still no zombies spawning

first of all i want to say thank you for updating this mod. i tried it on vanila and rhs/cup and default parameters. this goes for zombies, loot, and vehicles one load alot of vehicles no loot no zombies or no vehicle no loot and zombies(zombies wont react to shooting whatsoever) it looks random