Post your gamertag if you want to do the damage glitch with me. This can be done with any of the default primary weapons. You need to have the damage proficiency unlocked for at least one of the shotguns. Barrett with damage = no more hitmarkers. * If you don't have damage you can still do it with another proficiency like range or mele. I am not sure what would happen if you did damage with a riot shield but it would be cool if you got one hit kills.