Basically on xbox one with a auto rifle exotic i use SUROS Regime the sound when shooting keeps going weird though it happens on and off i mainly use it aiming down sight kinda sounds like a paintball or pellet gun going off though rather quite when the sound goes funny then can go back to sounding like a normal machine gun can sometimes fix it by going out of sight then back to using it. But then just comes back again when you get out of aiming down the sight i think it happened with another auto rifle cant be sure as i switched back rather quick to SUROS Regime so dident notice to much. Its not bad that i wont use it but rather wierd when it happens it never did it before the update on Tuesday. Here is a link to a YouTube video of the bug i posted - https://youtu.be/bDhMd4VCbIc