Hounds of Hell

 The Hounds of Hell is a faction mentioned in The Armageddon Rag, Vol. 4.

Background
The Hounds of Hell is a faction whose members can be identified by a tattoo of a snarling dog, usually on the arm. They are at odds with another faction known as the Torn Sky. 

Appearances
The Torn Sky are mentioned only in the short story J. Hardy and the Death Blankey, published in The Armageddon Rag. They were likely to appear in Fallout Online, the original canceled Project V13.