Flak

 is a former slaver from Paradise Falls who now lives in Rivet City with his business partner Shrapnel. Together they run the Flak & Shrapnel weapons store in the Marketplace.

He is one of the targets for enslavement that Eulogy put a special bounty on. According to Paradise Falls' gatekeeper, Flak sold the slavers out to Rivet City in order to gain shelter there. Before enslaving him, Flak is unkillable. This ensures that there will always be at least one live target for Strictly Business.

Flak and Shrapnel share their store's inventory, so buying or selling from either one of them will update both of their stocks. This means that if Flak is enslaved by the player for Paradise Falls, Flak and Shrapnel's store will still be open. They consistently have a larger amount of caps than the other shops in Rivet City, making them prime sources of cash in exchange for unneeded loot.

Appearances
 only appears in Fallout 3.

Trivia
Flak has an ostentatiously gay moustache and conforms to the stereotypes of the "physique queer" as established by Tom of Finland. Several gay organizations have welcomed Bethesda's decision to include well-rounded and openly gay male characters like Flak, Shrapnel and Anthony Ling in the game. At least one gay rights group has praised Bethesda's depiction of a variety of gay character types and their rejection of crude gay stereotypes.