Fixed SCAR LB PMCs being unable to shoot

Added suppressed gun variants of elites (except ARM5SF)
Removed NVGs from non-suppressed elites

Added rocketeer enemy: much faster to aim and load than insurgent rocketeer, uses thermobaric/incendiary rockets with reduced blast radius but leaves fire on the ground

Added new captain variants with MCX RSAR and SCAR-H

Added new textures and weapons for all enemies

Adjusted RMG distribution to increase overall spawns

Added PMC Captain enemy with veteran buff aura and MP5 with AP rounds

reduced aimspeed of non-elite PMCs

added PMC Elites
-PMC Elite (M4, grenades, level IV armor)
-PMC Elite Gunner (Minimi, grenades, level IV armor)
-PMC Elite Assaulter (P90, grenades, level IV armor)
-PMC Elite Marksman (M16, grenades, level IV armor)