Farming plan

Pistol Gambit

Dropped by

Exploiter Orb Common 38.72 %

Another Betrayer, Rotation B Rare 8.43 %

Family Reunion, Rotation B Rare 8.43 %

Hot Mess, Rotation B Rare 8.43 %

Recover The Orokin Archive, Rotation B Rare 8.43 %

Sunkiller, Rotation B Rare 8.43 %

Table For Two, Rotation B Rare 8.43 %

The Aftermath, Rotation B Rare 8.43 %

Time's Up, Rotation B Rare 8.43 %

Scrofa Crewman Common 7.59 %

Scrofa Plasmor Crewman Common 7.59 %

Scrofa Sniper Ranger Common 7.59 %

Chance of getting it by number of runs

Each run has a 38.72% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.