Unreal Tournament, loved that game, used to play it with the guys every Friday after school. If you thought landing headshots in Destiny was easy, dude, it's nowhere near as easy as it seemed to be in UT. I remember thinking awww crap, hit the far wall again, but wound up with a spectacular headshot of an enemy who happened to be jumping semi near the sightlines of my shot. It was almost like those things had Truth (pre nerf) tracking.