Shotgun Riven Mod: Drop sources, locations, and probabilities

Missions with a Chance to Get Shotgun Riven Mod as a Reward

Planet / Mission	Type	Probability
- / The Descendia: Uncommon (Steel Path)	-	7.14
Duviri / Endless: Tier 6	Hard	2.70
Duviri / Endless: Tier 7	Hard	2.70
- / Sorties	Sortie	2.20

Other items:
Shotgun Ammo Mutation - Primed Shotgun Ammo Mutation - Shotgun Amp
Shotgun Scavenger - Shotgun Cannonade - Shotgun Savvy