Survivors with high strength should be able to fire a minigun/machine gun without needing to mount it on a bipod or something. It shouldn’t be physically impossible anyway. We’ve all probably seen Terminator. A highly fit individual (like a hardened survivor) should be able to shoot a minigun. And since power armor and CBMs/mutagen exist in this world, increasing your strength to superhuman levels is doable.
Would be nice to have super high strength mean something in-game.