hey for the up and coming Zeus op on sunday 1 O'clock in Greenwich,
there are some things u need to no for example which mods you need

Zombies and demons
RHSUSAF
RHSAFRF
ACR_A3-Army of the czech republic
RHSGREF
ACR_A3-RHS
Bio-Hazard backpack
A3 Sounds and Music pack @MH_Sound
CBA_A3
Ares mod Achilles