I personally really like the Ferals expansion to the Rimsenal mod, where it's an entire faction equipped with weapons you'd picture a brawler-trait-having pawn using. Classic Quake array of pistol-machinegun-shotgun-sniper-rocketlauncher-oddball, all lacking in the range and overall reliability of their conventional counterparts. Thing is, they all have close-quarters modifications, like an axehead on the shotgun, or spearhead on the sniper. As somebody who has never written a piece of code in my life, I'd imagine it would probably be simplest to make specific weapons for that purpose rather than adding the possibility to modify weapons that we have now, otherwise you'd have to deal with modifying interfaces or double the bills menu for the machining bench with "Assault rifle, Assault rifle - bayonet."
Or just incorporate simple sidearms and get over the fact that you can have a minigun, but not a knife and pistol at the same time.
Or just incorporate simple sidearms and get over the fact that you can have a minigun, but not a knife and pistol at the same time.