Catherine-B320

Lieutenant Commander Catherine-B320, commonly known as Kat, was a SPARTAN-III commando of the UNSC Naval Special Warfare Command, attached to Special Warfare Group Three. She fought as a part of Noble Team under the call sign Noble Two.

Born in Monastir, New Harmony in 2530, she was conscripted as part of Beta Company early on. She would later be taken out of Beta Company by Kurt-051 and Franklin Mendez after Operation: CARTWHEEL. Some time later she would be assigned to the newly formed Noble Team.

Kat, along with Carter-A259, is one of only two survivors from the original Noble Team. As a result, she shares a close bond with Carter. She is Noble Team's second-in-command, and described as being fiercely loyal to Carter and the rest of the team.

On April 22, 2552, Kat planned an operation to destroy a CCS-class battlecruiser maintaining position above a city. The operation was successful, but cost Thom-A293 his life, and Kat her right arm, which has since been replaced by a robotic prosthetic. Kat clearly has no problem working with her prosthetic arm, as she moves it just as naturally as her previous biological one, even continuing to hold her pistol in her dominant right hand.

Both Carter-A259 and Kat took responsibility for the death of Thom, unable to admit that the death of the SPARTAN had been his own fault. Thom's place in Noble Team would be filled by SPARTAN-B312 a few months later, just prior to the Fall of Reach.

Catherine was described as an inspired tactician and an exemplary combatant, but also a brilliant cryptanalyst and a hacker; allegedly, there has not been a system yet that she had been unable to crack. According to Colonel Urban Holland, she had a habit of occasionally investigating classified Intel more than her superiors would have liked her to. Her ability to acquire and digest information has been described as "supernatural". She acted as Carter's second-in-command and was fiercely loyal to him and the team. Kat has a Slavic accent.

Kat's preferred weapon is the M6G Magnum Sidearm. She sometimes uses the MA37 Assault Rifle.

Kat wore the Mark V[B] armor with an Air Assault helmet upgraded with an AN/PZY-990T STARLIGHT module. She wore SAP/FJ shoulders on either arm and used a M45 Hardcase utility on her left thigh. Following the loss of her right arm in the Battle of Fumirole, Kat instead made use of an robotic prosthetic replacement arm. Accordingly, she used an "up-sized" variant of the M6G magnum specially designed for use by Spartans, with further custom modifications made tailored for use with her prosthetic arm.

Noble team members: Noble One - Carter, Noble Two - Kat, Noble Three - Jun, Noble Four - Emile, Noble Five - Jorge, Noble Six - Six

The SPARTAN-III program was a secret project initiated by the Beta-5 Division of the Office of Naval Intelligence's Section-III in order to produce cheap and expendable super soldiers to fight for the survival of humanity and the United Nations Space Command's colonies. The SPARTAN-III program was both the successor and supplement to the SPARTAN-II program. Created and engineered by Colonel James Ackerson of the Office of Naval Intelligence, the SPARTAN-III soldiers were to be the next generation of supersoldiers. Composed primarily of vengeful orphans from fallen colonies, they would be cheaper to arm, train, and produce; being chosen from a wider pool of candidates, they would also be more numerous than their SPARTAN-II predecessors. They would rely on superior battle tactics, and teamwork rather than advanced technology and equipment to achieve their combat effectiveness.

Reach is a human colony world in the Epsilon Eridani system, located within the Inner colonies. The UH-144 Falcon is a troop transport tilt-and-transverse-rotor helicopter.

The Charon-class light frigate is a type of escort ship. They are used primarily in fleet escort duties, planetary defense, and the landing & deployment of mobile troops. The Paris-class heavy frigate is a classification of fleet escort ship in service with the UNSC Navy.

The Sh'wada-pattern supercarrier, is a powerful supermassive capital ship and one of the largest vessel classes formerly used by the Covenant, primarily designed for command and control duties for fleets, as well as support for occupation forces.

The MA37 assault rifle is a standard-issue automatic rifle utilized widely by the United Nations Space Command.

The M6G Personal Defense Weapon System (PDWS) or magnum, is a handgun in Misriah Armory's M6 series.

The United Nations Space Command (UNSC) is the military, exploratory, and scientific agency of the Unified Earth Government (UEG) and has acted as the emergency governing body of the human race.

The Covenant is a massive religious hegemony of multiple alien species that completely controlled a large portion of the Orion Arm in the Milky Way Galaxy for thousands of years. The Type-25 plasma rifle, used by Convenant infantry, is a battery-powered directed-energy weapon that is capable of fully automatic fire. The Type-25 Directed Energy Pistol, the plasma pistol, is a Covenant infantry weapon

The Sangheili, or "Elites" as they are known by humans, served as the military leaders of the Covenant. The Sangheili are the only race within the Covenant permitted to build and command starships within the Covenant, though the crews are always composed of a mix of races. The Jiralhanae, or "Brutes" as they are known by humans, were the most recent addition to the Covenant, and served as soldiers and bodyguards within the Covenant military. The Lekgolo are a race of worm-like creatures that can combine to form large, intelligent assemblages called Mgalekgolo, known by humans as "Hunters". Clad in nearly impenetrable armor and armed with their trademark Assault Cannon, they served as the Covenant's heaviest ground troops. Hailing from Balaho, the Unggoy, or "Grunts" as they are known by humans, were the most common and low-ranking caste of the Covenant. They breathe methane gas, and thus must wear a large tank on their back full of methane to survive on other planets. The Kig-Yar, or "Jackals" or "Skirmishers" as they are known by humans, were the scouts and marksmen of the Covenant military due to their superior senses.

The Human-Covenant War was instigated by the High Prophets of the Covenant following a discovery which led them to believe that humans were directly related to the Forerunners, contradicting their ancient religion. Seeking to keep various political and religious orders intact, the High Prophets declared a holy war of genocide against the human species. With superior firepower, numbers and technology, the Covenant would repeatedly overpower the UNSC across hundreds of human-inhabited worlds, including the heavily defended strongholds of Reach and Earth. Humanity would win only scattered and costly victories.