Might be Necroing a little, seeing as this is about 30 days old, but here's some of the designs I have used, hope they helphttp://brikwars.wikispaces.com/file/vie ... 20Arms.lxf
The color strips were just to classify what >I< Used them as. They're not fancy, they're practical, mostly made from plentiful common parts.
Brown PDWs, Low Quality Small guns
White Short Energy/Laser Weapons, Laser Carbines,
Tan Short Rifles, Carbines, SMGs
Red Rifles, Assault Rifles, Service Rifles, Semi Autos, etc.
Blue Large Caliber Rifles, Heavy Rifles, Sniper Rifles, etc
Yellow Energy/Laser Weapons,
Green Various Anti vehicle weapons, Rocket launchers, RPGs,
Orange Light mini portable machine guns Note the last weapon is a "minesweeper" peice, I cut the back off mine, I don't really reccomend Taking scissors to lego though.
Purple Heavy Machine Guns