minor materials update to the skins

more updated particles and muzzles

tracer changes, changed railgun muzzle, tweaked flamethrower and fixed damage bug

material fix

updated shotgun sounds and vfx, updated flamethrower vfx; the flames should now deflect off of things shortly before 'detonating'

m39 audio update

41a/3 FOV tweak

adjusted the a3's ADS

added new m41a/3 pulse rifle variant; keeping a/2 for now until i replace it with a brown bess/movie accurate pulse rifle; particle updates

shotgun mat tweak