Fixed a weird triangle on the sleeveless arm

Added shirtless body + completely sleeveless arm bodygroups
Made their legs hairy
Changed the way the helmet texture displays so it plays nicer with the submaterial tool

HECU can now wear shorts
Original cigar head texture added

NPCs now spawn with random bodygroups
New gas mask only bodygroup
Gas mask in general has a better shape
C_arms improved

New sleeve/pants textures from the pre-release HECU.
Some new shotgunner balaclava bodygroups.
Ugly lighting on the white guy's neck fixed.

Added the original HECU body and gloves as a bodygroup

Improved the white grunt's hairline

Fixed an issue at least I was experiencing with the black grunt's first person hands being white