I'm not a fan of the mouse/keyboard thing, personally. I think any competitive game should have everyone on equal footing. Either everyone uses mouse/keyboard or everyone uses a controller. He does use mouse and keyboard currently, you can hear the mouse click all the time when he plays. But the game allows for that, so I can't really call him a jerk for doing it. Same reason I can't get mad at Thorn users. It's in the game, the problem is on the devs' end, not the players'.