primary deadhead replace [Heavy Caliber] for flat damage. i dont use [Vital Sense] because of my riven. put it on the slot if you dont have one

no damage on your riven if you use merciless, multishot, fire rate, cc ,cd, toxn (for viral) is good.

-if you dont care about viral and status (bad idea imao) use vital sense , and if you already use it on the riven slot, galvanized scope, argon scope or bladed rounds are the bests options.
-if you dont use the acanes, [Heavy Caliber] deal more damage than [Vital Sense] (if your riven have cd).

the combo primed cryo round+ [Malignant Force] is nice for damage and status. even if you dont use status on the gun, just put the 90 toxin, viral is a great element overall exept for infested, and [Primed Cryo Rounds] being the only primed elemental mod, you want it in your build.