Catherine-B320

"Kat; Noble Two. She is brilliant. There are no technical hurdles she can't overcome, but her curiousity borders on insubordination."

- Catherine Halsey

Lieutenant Commander Catherine-B320, commonly known as Kat, is a SPARTAN-III commando of the UNSC Naval Special Warfare Command, attached to Special Warfare Group Three. She fought with Noble Team as Noble Two during the Fall of Reach in 2552.

Biography
Born on Monastir, New Harmony in 2530, she was conscripted as part of Beta Company. She was taken out of Beta Company by Kurt-051 and Franklin Mendez after Operation: CARTWHEEL, not long before Operation: TORPEDO commenced. She was later assigned to Noble Team when it was formed.

She, along with Carter-A259, is one of the only two survivors from the original Noble Team, and they share a close bond as a result. She is Noble Team's second-in-command, and described as being fiercely loyal to Carter- and the team. This devotion cost Catherine her right arm, which has been replaced by a robotic prosthetic. She later fought in the Fall of Reach along with the rest of Noble Team.

Traits and personality
Catherine is 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 has been unable to crack. According to Colonel Urban Holland, she has a habit of occasionally investigating classified intel more than her superiors would like her to. Her ability to acquire and digest information has been described as "supernatural"; more than once, she has been able to read a situation, working with information many would find overly limited.

Much like Carter, Kat blames herself for Thom-293's death while it was apparent that neither was responsible; according to Colonel Urban Holland, Thom died because he pursued a group of enemies by himself rather than waiting for backup.

Trivia

 * Kat's voice will be available for use in Halo: Reach 's Firefight mode.
 * Kat shares her homeworld with Jun-A266.
 * Kat wears Mark V armor with an AA helmet with an unknown attachment, and MJOLNIR Powered Assault Armor/FJ/PARA variant shoulders.
 * As shown in an early production note, Kat was originally intended to have been born in 2529, and was supposed to have been conscripted as a part of Alpha Company. In this version, she and Carter were the last remaining members of a Spartan-III team known as "Blue Team" (not be be confused with the SPARTAN-II unit). This is also apparent by the similar coloration of their armors in early concept art.