Dennis Allen

Sergeant Dennis Allen was a Brotherhood of Steel member, who served under Roger Maxson's command.

Background
In 2077, during the Exodus, a faction led by Allen gained strength, and they urged Captain Roger Maxson to let them explore the ruins of West Tek to the southeast (called the Glow. The Captain refused. Rather than obey Maxson's orders, Allen and his followers split away from the Brotherhood of Steel, taking some technology and weapons with them. Among the followers were Soto, Jensen, and Camarillo.

They made it to West Tek Research Facility after 20 days. The radiation levels began to shoot up as soon as the giant crater was in sight. They concluded that with their armor and Rad-X supplies they'd be fine for a least a day of exploring and that the technology they had the potential of recovering was worth it.

They climbed down the crater to the first level and as there wasn't much of value on this level, they pushed on. Unfortunately for them, the security sensors had been burned out on the first two levels, but not on the third. Jensen was killed before he knew what had happened. Allen tried to regroup, but only Soto and Camarillo made it back up here to the first level with him. All three of them eventually died because of power armor air filtration failure. Before he died, Allen logged what happened to the expedition into a holodisk which was later found by the Vault Dweller.

Behind the scenes

 * Chris Avellone placed Allen's rebellion in 2134 for Fallout Bible, which would have made him at least an octogenarian when he split off. He appears to have missed two elements: Cabbot's explanation that the group split off during the Exodus and the fact that the disk references United States Army ranks and the United States Armed Forces, instead of the Brotherhood of Steel. Furthermore, Avellone mentioned Elders in the timeline, who did not exist in any capacity in 2077. Sophia's tape makes it clear that Allen defied Captain Maxson, not the Elders.

Appearances
Dennis Allen appears only in Fallout.