Setup good all around
Reason for mods:
Serration + Heavy Caliber- Base Damage massive increase
Rime Rounds + Malignant Force- Viral effect for extra damage to health, extra status chance
Thermite Rounds- Fire elemental damage decreases armor, extra status chance
Vigilante Armaments + Split Chamber- Multishot for better DPS
Point Strike- Juicy Crit Damage
Rifle Ammo Mutation- Runs out of ammo a lot (Can replace with [Vigilante Supplies])
I'm a low rank so I don't have any Rivens, feel free to try this out and modify it to your liking