quick fix for sentry group spawning INDFOR

quick fix - didn't change GL headgear in previous update

v 1.0c

Added trophy trucks: ammo, fuel, repair, transports.
Added retextured SOG pith helmet in cover
Replaced the uncovered pith helmets with retextured one from above.

v 1.0b

Fixed config issues, some minor loadout changes.
Removed ZPU-4 since not accurate to have it there.
Added backpacks which I have shamefully forgot to add on release.
Added Type 53 to the faction pool to use.
Added Special Forces subcategory.
Added Groups.