I just got this one from my first exotic bounty. I'm awful in the Crucible and so I picked the bounty that was only PVE when given my exotic bounty choices. I thought that it would be tough to control a machine gun, but this turned out to be completely untrue. I had a rare lvl 20 that I used to kill 500 enemies and had a blast doing it. Try not to laugh the first time you just unload a whole clip into oncoming thrall, it is ridiculous fun. After unlocking the feature, Super Good Advice will return missed shots directly to the clip... It's like having Terry Crews AA-12 in the Expendables (even though that was a shotgun)