Once again I've pitched this idea out there but yes, shotguns may not be 'op', but with the only maps aside from the moon being medium to close quarter combat, it excels in numerous firefights. Yeah they already nerfed it, but barely! It just means they have to run closer for that one shot kill. Which most of the time when you're running around a corner and a Titan is already running and sliding towards you, there's not much you can do. It's close quarters, unless you're using a fusion rifle or another shotgun, you can't beat a one shot kill. So the idea is simple. Limit the ammo capacity during pvp. Limit the frequency of ammo spawns like the heavies. It's a SPECIAL secondary. NOT a PRIMARY. It shouldn't be able to be used as a primary. Any game on earth, no matter what game, any secondary or third weapon is usually a lot 'weaker', mean to be a 'go to weapon' for emergencies.