I've been seeing a lot of love for this primary and felt underwhelmed by its damage output vs. the Kuva Bramma This build is an attempt to change that.
Where I think it truly shines in this regard is effective range, as you'll need to be far enough away for the arming time on the rockets. This means you'll be able to avoid using Primed Sure-Footed or other similar effects.
Notably, this mod setup uses the primary arcane + [Galvanized Aptitude] + bane of... setup to maximize the current way damage numbers are calculated in game.
I would recommend if you don't have the primed bane mods to instead use the un-polarized mod slot for elemental damage mods [Stormbringer for corpus, Hellfire for infested to kill ancients, and Infected Clip for greneer]
Enjoy, Sithis.