What If the Brotherhood of Steel Allied With the Enclave Part 1

Facing extinction from a robotic swarm known as the Scourge, the Brotherhood of Steel and Enclave merge to form the totalitarian "Iron Pact," sacrificing technology to survive. They establish a "Benevolent Tyranny" that ruthlessly oppresses the wasteland and crushes the "Wasteland Liberation Front" rebellion using genetically engineered horrors called Purifiers. Decades later, internal strife over a mind-control virus and the return of an evolved, bio-mechanical Scourge shatter the regime. The story ends in apocalyptic chaos, with the Pact collapsing into civil war while the NCR scrambles to contain the spreading madness.