10-21-2012, 05:59 PM
Judging from the page and my instinct, I think the green ones should be ok, orange ones I consider and unfair advantage, and red ones can cause server/mission problems:
gdtmod_aircraft_viewdistance 1.02
gdtmod_anti_tank_grenade_launcher_ironsights 1.02
gdtmod_binocular 1.03
gdtmod_compass 1.02
gdtmod_engineoff 1.00
gdtmod_environment 1.02
gdtmod_environment_addon_islands 1.00
gdtmod_friendly_tag 1.03 (probably not needed as well as mk4 hud)
gdtmod_hdr 1.01
gdtmod_helicopter_weapons 1.05
gdtmod_no_optic_reflection 1.00
gdtmod_nvgoggles 1.01
gdtmod_plants2 1.00
gdtmod_rifle_zoom 1.06
gdtmod_satchel 1.01
gdtmod_steerable_parachute 1.01
gdtmod_streetlamp 1.00
gdtmod_sun 1.00
gdtmod_vehicle_weapon_sight 1.02
Basically all red marked ones can have a global effect, and potentially break missions or other confusing stuff. Note that I didn't test any of this, just common sense.
Changing NV, zoom or sights is is a bit cheating in my opinion, better not use them.