Riel joined Corvus, Kazi, and Fazeka in arriving on Outpost High Ground at the end of Invader, witnessing Corvus eliminate Cayde Jasper. He appears again in Overture, where he's shown to have partaken in taking over the outpost after which Riel was tasked with watching over thethreeprisoners. Later, in Retrograde, Riel participates in Corvus' crusade on the outpost by eliminating its three prisoners. Later, Riel enters a shootout against a mysterious soldier that leads to his death.
First seen at the end of Deception and under the command of Corvus, Riel took part in taking control of Outpost High Ground. When Spartan IV Louie Vargas showed up with five robot soldiers, Riel incapacitated the red robot with the help of Fazeka and Kazi. When the robots reactivate in Ambush, Riel helped Corvus recruit the robots to join The Damned. While they agreed to join their cause, Riel was eliminated by The Spartan alongside Kazi when he blew up their Wraith Tank with plasma grenades.
