Many of the Faction Paradox novels, short stories and audios can be adapted into scenarios playable with a coterie of PCs.

Several stories are about joining the Faction or include origin stories about how someone did. Usually there are test or requirements needed to be filled in order for a prospective member to be inducted. These kinds of scenarios are best suited if you have at least one recruit or little sibling

The collatoral scenario is where a war-time power (participants) wanders through a character's life and does something devestating that causes them to want to join the Faction for reasons. It's more open on how they go about doing this.

• Justine McManus has her cousin murdered in front of her because Godfather Sabbath mistimes his arrival in the wild hunt and because her future self caused a temporal disturbance to attract the hunt's attention to them- Movers - BBV audio story
• Kelsey Hooper was stalked by a clingy ex-boyfriend that was not human and likely some kind of side-effect or creature from the War. She joins the Faction because they provide the training and equipment to stop him. Now or Thereabouts - A Romance in Twelve Parts