Hey guys, any chance of me joining as a melee fighter? Like, some magic agumented demon-slayer-esque squadmate?

EDIT: i know, exchanging a gun for a blade might sound unreasonable, but melee weapons have the potential to deal massive trauma, compared to bullets, outmatched only by explosives or pellets, which may work effectively against the undead; and if there are any heavily armored or insanely fast enemies planned ahead, melee weapons, in the hands of an unhumanly strong weilder, can both decimate armor to create large openings for gunfire and overcome speed with trick and feints that firearms are devoid of. Morever, a trained brawler would be used to close-range attacks, reacting faster and more percise to ambushes or charges of various feral beasties and such. Sort of a special arms guy that trades versality for unique advantages against the paranormal.

EDIT 2: if the characters get to be stronger than man, then a melee weapon can also generate huge amount of kinetic energy as well. Lets say, he sling a 10 kg hunk of metal at 100 m/s- about 1/3 of sound's speed. 100^2*10*0.5= 50 000. That nearly the amount of kinetic energy a single shot from a Vulcan exerts. And if he is twice as strong and has a denser weapon? 200^2*20*0.5=400 000! 8 times the power, all in one hit. And if we also take into account that most melee weapons have a significantly larger cross-sectional desity than most bullets, thanks to which bayonets still remian so effective at penetrating armor, this might even out melee weapons and explosives.