It's basically a pocket-sized Saiga now.
If you treat it like it that, it's your best friend.
I even, because I'm crazy, carried a silenced Executioner with my LMG class, because silent deaths farts worked great with the caught-with-your-pants-down-in-CQC nature of Light Machine Gun classes.
My road to gold Executioner was a blast...It was my primary, and it was probably the best time I had in BO2 (and I liked BO2 quite a bit).
Hnnnnng, now I wish Ghosts had a shotgun pistol....