| ||For other characters named Roger, see Roger.|
The team and research personnel were later relocated to the Mariposa Military Base on January 7, 2077, where further FEV research was conducted. On October 10 Maxson and his men learned about the human experiments going on in the base, morale suffered a hefty blow. The original leader of the security team, Colonel Robert Spindel, suffered a nervous breakdown and locked himself in his office and Maxson assumed his command.
Captain Maxson then took control of the entire base and began interrogating the scientists. After interrogating chief scientist Robert Anderson and learning what was really happening on the base, Maxson executed him. Two days later, Spindel committed suicide and Maxson ordered all the scientists to be interrogated and finally executed. Confused and detached, Maxson declared himself and his men in full desertion from the army via radio. No answer came as the political situation was at its climax and the Great War was at hand.
The personnel families stationed outside the base were ordered to move inside the base on October 20 and two days later the bombs fell. Maxson and his men survived the war unharmed, safely sealed inside the Military base unaware that the world had ended around them. After making sure the radiation levels outside were safe, Maxson ordered everyone to leave the accursed military base and travel to the Lost Hills government bunker. After burying the scientists, Maxson's soldiers and their families began the Exodus to Lost Hills. Raider attacks inflicted a heavy toll of casualties, including Maxson's wife, but his teenage son survived.
Some time later, in a proclamation to his men, Maxson declared that the United States had failed to protect its citizens and serve their needs during the years leading up to the War, and stated that they must form a new order to preserve civilization: a "Brotherhood of Steel." Shortly afterwards, Maxson and his men used a communications satellite to contact other Army units across the country and recruit them to the Brotherhood's cause. One such unit, based in Appalachia, was led by Elizabeth Taggerdy, an old acquaintance of Maxson's. Maxson remained in frequent contact with the Appalachia chapter, often broadcasting speeches about specific elements of his philosophy in creating the Brotherhood.
Maxson would go on to be chosen as high elder of the Brotherhood. In 2097 his grandson, John Maxson was born. Roger Maxson eventually died of cancer in 2135 and his son, already an accomplished soldier took up the role of the high elder, which stayed with the Maxson family until John's death.
After his death, the Brotherhood regarded Roger Maxson as an almost holy figure. Two places are known to be named after either him or his descendants - Maxson, one of the states of the New California Republic, and Maxson bunker, a Brotherhood of Steel outpost somewhere to the east of California.
The only known current living descendant of Roger Maxson is the young Arthur Maxson, who spent his childhood inside the Citadel in the Capital Wasteland, under the care of Owyn Lyons and the East Coast detachment of the Brotherhood of Steel. In the year 2287, he is the elder in charge of the East Coast detachment aboard the Prydwen in the Commonwealth.
- Captain Maxson's diary
- Maxson log
- Formation of the Brotherhood of Steel
- About the Brotherhood
- Preservation of technology
- Brotherhood honor code (non-canon)
- "What we need is... purpose. But we cannot look to the America of old for that purpose. We have to build our own. So tonight, as we break bread together, let us forge together something new. Something strong. Something we can be proud of. Something we can build upon. We'll preserve what's best of what's come before and use it. And one day, we will reclaim what was lost. Let us forge a Brotherhood of Steel."
- "We need to do something bold. We can't just stay the U.S. Army. What's going to happen, and this is only a matter of time, is some general, or some goddamn politician is going to exit a Vault and start ordering us around. And worse, they'll order some grunt to start the whole goddamn cycle again. Another wave of nuclear death, and if that's not enough they'll do it again! You know they will, Lizzy. It ends with us. We won't let them."
- "Words have power, Lizzy. They build identity. They take on a meaning if you keep using them, even if it didn't exist to begin with. It was the Knights and Scribes after the fall of Rome that protected what was left of Western civilization. So we are the new Knights and our role is similar."
Roger Maxson does not appear in-person in any of the Fallout games but is mentioned in holodisks and in Brotherhood of Steel dialogues. Fallout 76 features his first speaking role in the series, in audio logs left behind by the Brotherhood's Appalachian chapter.
- ↑ Captain Maxson's diary: "I, Roger Maxson, Captain, serial number 072389 have started this log because it doesn't look good for any of us, and I'd like for people to know what really happened here."
- ↑ Captain Maxson's diary: "The Colonel has locked himself in his office and seems to be having some sort of breakdown. The men are screaming for blood. They're looking to me for answers, and I'm not sure what to do."
- ↑ Captain Maxson's diary: "What the hell is going on? We declare ourselves to be in full desertion from the army and no longer under the Government's command and what happens? Nothing. Something bad is coming down. "
- ↑ About the Brotherhood : "Elizabeth Taggerdy: A Brotherhood of Steel? What's that even mean? The men over here are confused. Roger Maxson: We need to do something bold. We can't just stay the U.S. Army. What's going to happen, and this is only a matter of time, is some general, or some goddamn politician is going to exit a Vault and start ordering us around. And worse, they'll order some grunt to start the whole goddamn cycle again. Another wave of nuclear death, and if that's not enough they'll do it again! You know they will, Lizzy. It ends with us. We won't let them. Elizabeth Taggerdy: I... I understand. But a Brotherhood? Knights? I'm supposed to call you, what, Elder?"