It's pretty complicated. As a siren:mercenary class mod,torgue or dahl double anarchy smg. As a soldier:rifleman class mod,or support gunner, chopper machine gun (shove often to stop firing) As a berserker: ogre machine gun, blast master class mod. As a hunter:unforgiven revolver, gunslinger class mod, or penetrator sniper rifle,and sniper class mod. Good luck! :)