Thinking about how to mark the mixed weapons in the 15mm Darkest Star Venturian and I saw the 6 colors of "clear" paint Reaper Miniatures has available. The future soldiers should have a linkage between their integral computers in their helmets and their weapons so the proper Heads Up Display (HUD) shows on their visor for targeting.
I was thinking of five colors for the 5 weapon types - Gauss Rifle, Advanced Combat Rifle, Particle Accelerator Rifle, Particle Accelerator Carbine (think SMG,) and Plasma Rifle. That even leaves one color for specialists and command possibly.
Should I paint over the primed (white, black, grey, red?) metal? Over Silver or Gold Metallic? Over bare metal?
Who has done this before and what technique works best?