Its blatant cheating, just the same as lag switchers, laggers and auto-bot hackers. Like everything else, bungie wont do a thing about it. So its pointless complaining. If bungie at very least included a logo next to your name showing what everyones setup is. I.e mouse&keyboard, scuf, standard ps4, (whatever it is). Then you would at least know what your up against before the match even starts. Btw unfair advantage = cheating