As the title says, weapon class names for your units with human weaponry mods installed like the shotgun and sniper. I'll share some of mine.
Rifleman: Agent
Squad leader: *Military Alphabet* Lead
Light Machine Gun: Gunner AR (Automatic Rifleman)
Grenade Launcher: Grenadier
Sniper: Watchman
Rocker Launcher: Heavy TD (Tank-Destroyer)
Shotgun Pointman: Breacher
Shotgun Support (right behind ya): Specialist
My highest rank always stays in the Ranger equipped with an Auto-Cannon and smoke.
Obviously, I'd like some more creative names for my unique X-COM army, so hit me if you got any.