Relatives for Fallout 3's R91 Assault Rifle.
The S95 Assault SMG is a Fallout-ized MP5, based on the Hk54 prototype, albeit with bakelite furniture and the R91-style simplified receiver.
It can be upgraded with a stock, suppressor, and foregrip.
The R93 Heavy Assault Rifle is a .308 weapon, with combined features from the G3 and Madsen LAR, just to give it some unique character and more of a retro style.
It can be upgraded with bakelite furniture, a scope, and a muzzle brake.
The R93 Strongarm is a unique shortened variant with a modified gas system, muzzle brake, extended magazines, and some S95 furniture.