Assault Rifle: Lion's roar(the reload time is too long to be efficient.
Shotgun:N/A(becaus of how the game's calculates the damage of pellets)
Grenade Launcher: The Piglet( although raining down fire with incendiary rounds in a fun)
Bow & Arrow: English Longbow
Minigun: They're just meme weapons and a noob trap
Rocket Launcher: N/A (because of damage output)
Sniper Rifle: Rattlesnake or The WA2000( they're obsolete)
Sub-machine guns: The CMP(I think most people forget it even exists also obsolete because of Heather's SMG and Spec-Ops)
Revolvers: Peacemaker(single action reload and can't even akimbo from r Revolver Ocelot build)
Semi-Auto Pistols: Chimano Compact and any some of the Mid-tier damage ones like The Leo pistol and The Contractor pistols(they're just re-skins of other ones in their class.