Rhombus (Fallout: Brotherhood of Steel)

Rhombus is the head of the Texas Expedition in Fallout: Brotherhood of Steel.

Background
Before 2208, Rhombus created a splinter faction of the Brotherhood of Steel, despite some criticism from the elder council because of the former expedition grown by similar ambitions (to track down and assess the extent of the remaining super mutant threat) and the ensuing incident that divided the Brotherhood. He then starts a crusade against the largest faction of super mutants currently existing in the west, the Attis Army.

With some scribes and paladins, he mounted a new expedition which was later named the "Texas Expedition" and began tracking Attis' Army. They followed the army's trail to Texas and there, he discovered the vault prototype, an abandoned vault prototype dedicated to the Secret Vault project and installed themselves as the main base of the Brotherhood of Steel in Texas.

In 2208, Jane, the raider matron and their contact in the town of Carbon, reported movement of super mutants, and therefore Rhombus decided to go to Carbon with a group of paladins. Her information indicated their next destination, the ghoul city of Los. Here, Rhombus ends up being alone, captured, with all his comrades being killed in a bloody battle with super mutants and a local ghoul cult known as the Church of the Lost, but he managed to steal a keycard of the Secret Vault, the final destination of the Attis army and hid it under a truck. Rhombus is tortured by the cult leader, Blake, but later liberated by the Initiate. Afterward, Rhombus assisted the Initiate in getting to the truck where he had hidden the keycard. Once at the destination, however, he is blown up by a ghoul suicide bomber.

Unable to continue fighting, he gives the Initiate the keycard and entrusts them with the task of stopping Attis' army and finding the Secret Vault entrance. Rhombus is left sitting near the truck, wounded. It is suggested Rhombus is killed. However, if the Initiate returns to the place later, Rhombus is nowhere to be seen, and it is unclear if this was a developer oversight, if his body was taken by the ghouls or super mutants, or if this was meant to call his fate into question.

Playable character
He is also a playable character, after completing chapter two. He is very similar to Cyrus, though he has some extra advantages.
 * +30 AC
 * +100% Bonus to Melee Damage
 * +50% Bonus to Explosive Damage
 * +50% Bonus to Heavy Hitter
 * +50% Bonus to Wastelander

Appearances
Rhombus appears in Fallout as a talking head voiced by Clarence Brown. He also is a PC / NPC in Fallout: Brotherhood of Steel. He appears during the second chapter in the Church of the Lost torture chamber, where he and the Initiate mutually benefit one another. He becomes available to be controlled as a playable character in the third chapter. The latter Rhombus is voiced by John Vernon. He also is mentioned in the Fallout Bible.