I had been mostly using fusion rifles (Murmur and Plug), but recently finished the invective bounty. Found I was getting some easy close-quarters kills with it, but the gun is disappointing. Just last night I picked up Secret Handshake w/shot package perk from Vanguard Quartermaster. I'm looking forward to upgrading it and giving it a shot in Crucible (no ammo regen like invective, but 6 in the chamber vs 4, better stability, and shot package makes it deadly at a slightly farther range when zoomed)