Modded controller, particularly one that offers rapid fire. Hawksaw's TTK at optimal range and regardless of whether it rolled full auto or not is exactly 0.83 seconds. What we saw in the video is a weapon, which I use on a regular basis, firing at rates far beyond what it should be capable of. The gun is killing in half the time it should. There's bad lag, then there's what OP posted....blatant cheating. Is it "lag switches"? No....it's a modded controller through and through. I've seen how spoopy Bungo's connections can be, but what is shown in that video is without a doubt something more than mere lag.