Mostly, I envision the bulk of mighty melee weapons something a big, dumb mutant could cobble together with little skill or effort. Manhole shields, bumper swords, engine flails etc.
Mighty firearms on the other hand seem like they’d be almost exclusively manufactured for use with powered armor.
A [color=yellow]P[/color]owered [color=yellow]A[/color]rmor [color=yellow]W[/color]eapon [color=yellow]S[/color]ystem if you will.
Some could would draw off an active ups ((And be energy gluttons at that))
Ex. High-yield energy cannons, fusion artillery, cone-lasers
Others would use more mundane munitions and likewise be an easy way to empty your ammo stockpile.
Ex. Gatling-type machine guns, belt fed grenade launchers, high-capacity automatic shotguns, etc.
So with all that said I have to think, besides weight what keeps joe-average from firing these outside of powered armor?
Recoil.
I’ve been thinking about recoil and an addition to how it’s implemented. As it stands ((Correct me if I’m wrong)) the recoil effect simply reduces accuracy as it increments. I’d suggest something more.
In addition to the effect recoil already has, the ‘kick’ of each shot ((I.E. how much it raises your recoil per shot)) is factored against your strength. This check is skipped should you be wearing active power armor.
Depending on how poorly your strength measures up along side the kick several things could happen when you pull the trigger. Such as:
*Dropping the weapon
*Smacking yourself with the weapon
*Being knocked prone
*Additional recoil penalties
*Reduced to-hit
Essentially this simulates how both a sawn-off shotgun and automatic weapon would be difficult to keep trained on a target when fired, but for different reasons. Most firearms would be easy enough for average characters to handle, but it would keep an exceptionally weak character from firing a desert eagle all willy-nilly and leave “mightier” guns for the properly equipped or heavily augmented/mutated.
All that said I do have some DIY mighty firearm ideas.
Samaritan - A revolver that converts empty 40mm grenade canisters to really big bullets
Colossal Bow - A massive bow that fires arrows made from wooden spears
Street Sweeper - Several 9mm submachine guns Jerry-rigged together. Though they fire in tandem each gun must be fed a new magazine individually.