Pyromaniac (quest)

Pyromaniac is a side quest in Fallout 4's Creation Club, automatically activated after installing the "Hellfire Power Armor" mod.

Detailed walkthrough
Head to Pyro's camp, which can be found southeast of Listening Post Bravo. The camp is marked by a large bonfire in the center. Upon arrival there will be 2 members of the Forged with Pyro, eliminate Pyro (and the other two members is necessary/desired) and the quest will be completed.

Bugs
If this quest is not completed before Blind Betrayal, upon arriving to confront the player (if they have spared Paladin Danse's life), Elder Maxson will immediately attack Pyro and the Forged instead of speaking to you, thereby making the quest impossible to complete.