Spartan Catherine "Crimson" Weathers

Spartan Catherine Weathers is a Spartan-IV, and a member of the UNSC Navy. She is the Protagonist of the main events of Fireteam Inf''erno. Despite ''not starting her Spartan career in the UNSC, she has earned several medals of honor, and is the current commander of Fireteam Inferno.

Childhood and Spartan-IV training
Catherine was born in 2536 and lived with her mother and father on Reach. She attended school at a large academy and did well academically.

Catherine was not present for the Fall of Reach.

In 2554, Catherine was recruited into the ONI Shadow Forces, a secret group of Spartan IIIs and Spartan IVs that were not under the UNSC, yet still worked with ONI.

Despite being at a very young age while working with the Shadow Forces, Catherine was known to be if not, one of the best Spartan IVs that ONI had on their squads and Fireteams. There have been multiple occasions where Crimson has been sent on missions without the assistance of other Spartans. Catherine eventually lost her name while working with ONI, and was only known as Crimson-C252R. Catherine had begun a new life.

Catherine's leadership skills were correctly observed: the result of their mission clearly solidified her role as the overall leader of the Spartan-IlIs. He also became the established leader of the temporary Spartan-III and Spartan-IV Team, Fireteam Midnight.

Like the Spartans of the UNSC, ONI's Shadow Forces also went through physically enhancing augmentations that are required to use the MJOLNIR Armor. Every Spartan except for Crimson had these augmentations. Crimson had already been using the MJOLNIR armor. What she used was a steroid that severely increased her reflexes and thinking speed.

Early military career
Crimson would remain with the Shadow Forces until 2556 when Major Havok was glassed. Crimson was reported MIA by ONI.

Catherine excelled while in the Shadow Forces, she was noticeably performing well with a standard magnum, but performed even better with a BR895 Service Rifle. She quickly reached the rank of Lieutenant Commander, and was even listed by ONI as one of their greatest candidates to live, and was even gifted a set of Helioskrill armor.

Missing in action and Shadow Force Hunts
Shortly after the glassing of Major Havok, ONI wanted to eliminate their Spartans as if they never existed. Known Spartans that were officially listed as KIA, such as Latimosa-P754W, or Richter-C602Y. Only 3 of the 9 members of the former Fireteam Midnight are reported KIA.

Crimson, aware of the Shadow Force Hunts, made sure to remain anonymous with being involved with the UNSC. Instead of affairing with the UNSC and the hunt for Jul 'Mdama, Crimson would instead trade with the Kig-Yar and Sangheili of Sanghelios. What she would trade for is salvaged MJOLNIR armor, and parts for Covenant weapons.

Death
Catherine, along with Blisk-109, would both be reported MIA in October of 2568, then a month, when Blisk was found, alive, Catherine was reported KIA by Blisk himself..

Age
Catherine is 22 years old, making her the second oldest member of Fireteam Inferno, after Cooper Smith.

Trivia

 * Catherine's Alias Crimson is a reference to Fireteam Crimson, a group of protagonists in the Spartan Ops mode in Halo: 4.
 * Catherine is one of few characters that whose name doesn't reference a character from Titanfall 2, the other characters are Carter and Sae. The characters that do reference a Titanfall character is Blisk, Cooper, Richter, and Latimosa.
 * Catherine is the only Spartan known to not have the physical augmentations to be able to operate MJOLNIR armor.
 * Catherine is the only Spartan to be de-ranked to an ODST.

Appearances

 * Halo: Crimson (Novel) (First Appearance)
 * Halo: 4
 * Halo 5: Guardians
 * Halo 2: Anniversary (Multiplayer Only)