Atom Cats

Atom Cats is a faction, dedicated to usage of power armor. They seem to reference the mid-1950s Greasers, with leather outfits and a hot rod-themed paint job for their power armor. They are often pressured by Gunners and Raiders trying to steal their suits.

One of the named members Duke can be seen roaming throughout the wasteland, and upon dialogue marks the Atom Cats garage on the map.

Background
It is unknown as to why the faction started or where they sourced the large number of power armor suits, though it is likely at least some were retrieved from a military cargo barge half-sunk outside their garage. It is also likely that they found them the same way the Sole Survivor does, simply scattered throughout the game map.

Zeke states that he single-handedly slew a pack of feral ghouls once to claim the garage. He then assembled a group and showed them "the way of cool". One member is mentioned to be deceased, Aimin' Andy, who was responsible for the "rockin tunes" now played in the garage.

Interactions with the player character
The Atom Cats offer a set of power armor for purchase, as well as membership upon completion of a quest to repair the pump at the nearby Warwick homestead and assistance defending against a Gunner attack.

Appearances
The Atom Cats appear only in Fallout 4.