i fired him to play solo, companions fuck up my stealth game.
sure having a super mutant with infinite ammo on a gatling laser is awesome, but so is killing 5 super mutants in a room in one vats round each time without any of them noticing me. and if shit is tight, that's why god invented the nuka grenade/bottlecap mines. stealth makes setting up mine traps easy.
but i reckon there are a good different ways to play the game, this is how i play anyway.
stealth/small guns(easy to find ammo for, mandatory imo)/energy weapons(later on you get tons of ammo, plasma rifle = rape)/explosives(1hko anyone?)