Eddie's Emissary

 is an unmarked quest in Fallout: New Vegas.

Quick walkthrough
Find a way to earn the trust of the Powder Gangers at the NCR Correctional Facility.

An opportunity for that arrives when Eddie, leader of the Powders Gangers at the facility, asks you to join their ranks in the upcoming attack of the NCR.

Perform you duties well and you will gain fame and the sought after trust!