Back in ME2 the M-22 was my go to shotgun, enough power to feel like a shotgun, multiple rounds per Tclip, and it hit the sweet spot for a pump shotgun's fire rate. I almost completely missed the plasma shotgun's DLC so it's presence in that game didn't really hold. Fast forward to ME3 and well I still tend to use the eviserator. The GPS doesn't really 'feel' like a shotgun to me, its maximum effective range is far longer then most of gameing's shotguns, has a charge mechanic, and only three 'pellets.' I mainly use with my geth characters as it's still a damn good, it just doesn't feel liek a shotgun to me. Really thanks to ME3's multiplayer I've come to appreciate the vast majority of weapons in the game.