I don't know if many people know this but I'll tell you how to swing the sword twice as fast. I don't know if this works with any other class other than hunter's with the raid boots on but that's all I've tried it with. So here's how. After you start swinging the sword with right trigger (heavy smash) start strafing to the left and hold strafe while you swing. You will swing twice as fast and not lose target on Crota. I have confirmed this with three different people. I hope this helps guardians. Happy hunting.