SPARTAN-B312

"Noble Six. The team's most recent addition... my, my. So much black ink..."

- Catherine Halsey

SPARTAN-B312 is a SPARTAN-III commando of the UNSC Naval Special Warfare Command, attached to Special Warfare Group Three. This Spartan served during the Fall of Reach as a member of Noble Team under the call sign "Noble Six".

Background
"I've seen your file. Even the parts the ONI censors didn't want me to. I'm glad to have your skill set, but we're a team. That lone wolf stuff stays behind."

- Carter-A259 to Noble Six. Noble Six is remarked to be a skilled assassin and "...more of a hyper-lethal vector than a soldier," as evidenced from Noble Six's heavily redacted personnel file. Noble Six has a tendency to "go solo" during missions, much to the dismay of superiors.

SPARTAN-B312 is the main protagonist in the upcoming game, Halo: Reach. To integrate player relation with B312, players can pick what gender they wish Noble Six to be, with separately recorded voices for each gender. It has also been confirmed that Six is not a "strong silent type", and will speak openly in the game. Players' Multiplayer and Firefight character models will also be the same as in the campaign, adding further customization to SPARTAN-B312's character.

Early career
SPARTAN-B312 was taken out of Beta Company immediately after training, according to a communiqué from Kurt Ambrose to Franklin Mendez that was sent in May 2545 (two months before Operation: TORPEDO).

Later career
Over the course of B312's career, the SPARTAN gained a reputation as an efficient lone wolf assassin, having single-handedly broken organizations and made entire militia groups disappear. B312 was also involved with a top-secret UNSC project called the "Sabre Program," which resulted in the development of the Sabre space fighter. Little else is known about the program or the level of B312's involvement.

At one point, B312's superior allegedly used the SPARTAN as "his own private grim reaper", and because of this, he was reluctant to have the Spartan assigned to Noble Team. On July 24, 2552, SPARTAN-B312 was assigned to Noble Team as a replacement for its previous sixth member, Thom-293. Six, having recently arrived on Reach, joined the team just in time to participate in an operation to investigate a communications blackout at the Visegrad Relay, a mission which led to the first confrontation with Covenant forces on the planet.

Fall of Reach
During the final weeks before Reach's eventual glassing, Noble Six partook in multiple operations against Covenant forces on Reach along with the rest of Noble Team, including a night-time reconnaissance mission with Jun-A266 and a large-scale UNSC assault on a Covenant base.

At some point in the battle, Noble Team helped UNSC ground forces repel Covenant invaders from a UNSC base, which housed a Sabre launch facility. SPARTAN-B312 and Jorge-052 were then launched into orbit in a Sabre to assist the Epsilon Eridani Defense Fleet in a space battle against the Covenant, in a UNSC counter-offensive codenamed Operation: UPPERCUT.

Trivia

 * SPARTAN-B312 is not shown on the box art of Halo: Reach, nor featured in any promotional image of Noble Team. This is most likely done to avoid portraying Noble Six as outside the player's control, preventing them from building a definitive mental image for the character, as Noble Six's armor and even gender will vary depending on the player's choice.
 * At this point, SPARTAN-B312 is displayed as having the default MJOLNIR Mark V armor with the Mark V[B] helmet and gray coloration. This is also done to avoid portraying Noble Six as a character outside the player's control, as Noble Six's appearance will depend on the player's armor customization and gender choice. Despite this, Noble Six's helmet has the HUL attachment in the Halo: Reach Video Games Awards Trailer; however, it has been changed to fully default equipment in all material since then.
 * In the Video Game Awards Trailer, Jorge-052 remarks "Didn't think anyone survived Pegasi, sir" upon seeing Noble Six for the first time, in reference to Operation: TORPEDO, a mission on Pegasi Delta which led to Beta Company's near-total annihilation. This line is not present in the final game, likely due to the fact that SPARTAN-B312 never took part in the operation in the first place, having been taken out of Beta Company directly after training.