Tex

Project Freelancer
Some time before the events of Red vs. Blue, Tex was part of an experimental program that implanted artificial intelligence (AI) constructs into the suits of soldiers to enhance military performance. Other known members of this unit are Wyoming, Washington, and York. According to Tex, everyone in the unit was codenamed after one of the 49 then-remaining US states (Florida no longer exists). Her Freelancer code name is Texas (although stating it was Nevada in a sarcastic response to a stupid question ).[1] She is also Church's ex-girlfriend, and were close to being married once, but Tex's unfaithfulness and overall attitude ruined that. It is also apparent that she has known Church since at least high school. In her missions, she uses a voice distorter to make her voice sound like a man's. She was secretly at the Bjordinal Cryogenics Research Facility and planted a transmitter to the Mother of Inventions MAC cannon, destroying the Oil Rig.

In the episode Captive Audience, she appears as the new recruit of the Project Freelancer, knocking down Agents Wyoming, York and Maine in a training match. The next episode, Introductions, continues the training simulation. Tex easily defeats York, Maine and Wyoming due to their lack of teamwork in the gravity staff and hand-to-hand combat portions. Rounds 3 through 9 consisted of training using lock-down paint. However in the 9th Round Maine and Wyoming begin to use live rounds instead of the lock-down paint. York tries to help Tex but she berates him for abandoning his team. Eventually Wyoming lands a shot on Tex's shoulder causing it to short out and her not being able to use it. However she still is able to best Wyoming and Maine. Maine is not fully disabled by the lock-down paint and fruitlessly attempts to attack Tex, only to be fired on with more lock-down paint. Before his armor hardened completely, Maine managed to throw a live grenade at Tex. Tex effortlessly dodges it and the grenade lands next to a dazed York.

She attempts to save York by hitting him with enough lock-down paint to quickly harden his armor and protect him from the explosion. When the Agents who were watching come down with medics to help York, three black-uniformed men try and help Tex who snaps at them not to touch her and pushes them away. Carolina, watching her, notices her arm spark again and notes this as interesting. She is secretly sent by the Director on the mission to capture the Sarcophogus, where she was planting a transmitter for the Mother of Invention's Magnetic Accelerator Cannon. Carolina, York, and Washington see this and Carolina confronts her and realizes that she was also the one who destroyed the oil rig. Before anything happens between the two the team is surrounded by dozens of soldiers. The transmitter activates and the Mother of Invention destroys the building. Tex excapes using a jetpack and aids in getting the Sarcophogus onto a Pelican. Once it's secure, she jumps out to continue her mission. She is later seen requesting for F.I.L.S.S. to drop a pod. F.I.L.S.S. won't as a safety protocole but is forced to by the Director. Its revealed that the contents were a motorbike and Rocket Launcher and Tex drives through a window onto the highway with these only to be pursued by two Insurrectionist Warthogs. She destroys these Warthogs with her Rocket Launcher while still on the motorcycle. She then sees a Hornet attacking Team A and goes on a ramp sending her in the air, and destroys one of the two Hornets attacking them. She is seen again chasing after the remaining Hornet, with a soldier carrying the briefcase, with Team A. Carolina tells York she cannot get it first and the two race.

Tex tells Carolina to fall back but she refuses. Tex then throws her motorcycle at the Hornet destroying it but the soldier flies away on his jetpack. Tex is later there when Carolina sees the briefcase in front of her. Tex takes it, contacts command, tells Carolina better luck next time, and jumps off the highway. After the mission, Tex was appointed as No. 1 on the Freelancer leaderboard.

Joining the Blues
Tex first appears in Church's flashback about how she killed all of the Blues on Sidewinder (except for him). When she appears at Blue Base, she terrifies Tucker and Caboose, while using the latter as a target. During her assault on Red Base, she sticks a plasma grenade to Donut, and manages to knock out Grif (While Simmons faints), but is cornered by Sarge and Lopez, the former uses the butt of his shotgun to knock her out, thus damaging her voice distorter. The Reds are very surprised to find out they were almost defeated by a girl. Church's ghost and the other two Blues, Tucker and Caboose, are then forced to break her out, at which point Church reveals that Tex is his former girlfriend. In exchange for breaking her out, she agrees to aid them for the duration of their time in Blood Gulch. As she repairs Sheila to attack the Reds, Church and the other Blues make a plan to keep her there to remove the AI from her, but when she completes the repairs and begins her attack. It isn't long, however, before she is killed by the Red Team rookie, Donut, who threw a plasma grenade a quarterway across the canyon in revenge for her previously injuring him. Before she dies, she tells Church the AI is gone.

In the miniseries that was focused on Tex, Red vs. Blue: Out of Mind, it is revealed that any bad AIs were to be removed. However, Tex's AI, O'Malley, resisted removal and Tex, with O'Malley still in her system, escaped the facility.

Unlike Church, she does not reappear immediately after her death. Season Two begins three months after her death, and she does not appear until halfway through. When she does, she reveals that O'Malley has jumped into Caboose, and she is now driven by an urge to destroy him. To do this, she reasons that forcing him out of Caboose's Mind while everyone in the canyon has their radios off will eliminate him. She enlists Church's aid in driving O'Malley from Caboose's head and sends Tucker to turn off the radios of the Reds, but their plan fails after everyone forgets about a medic named Doc, who was previously abandoned by both teams and knew nothing of the events taking place. Doc then becomes the unwilling host of O'Malley. After forcing the AI out of Caboose's head, Tex disappears until the end of the season, when she possesses the body of a robot built by Sarge as the condition of a surrender. Throughout Season Three, she again devotes herself to eliminating O'Malley, while at the same time protecting Tucker from Wyoming, whom O'Malley has hired. Even when propelled into the future, she is driven to destroy the AI.

Lone Adventures
In Season 4, when the Blue Team is blackmailed into aiding Crunchbite on his own quest, she joins his group in the hopes of gaining Tucker's sword as a reward. However, when the team finds an alien ship, which Tex declares as her own, it is shot down by Wyoming. As a result, Tex pursues him in a fury. This is followed up in Out of Mind, where Tex hunts down Wyoming, hopefully to also find O'Malley in the process and destroy him. She follows him to O'Malley's fortress and, aided by York, a former infiltration specialist, breaks in, only to find O'Malley absent and Wyoming, with two others, lying in wait. The two foot soldiers are quickly dispatched, but York is killed by Wyoming. Tex then corners Wyoming (with help from York's then-fading AI Delta) to find out details of where O'Malley has gone and who he has jumped into.

Returning to Blood Gulch
Tex makes an appearance in Episode 86. Sneaking up behind the Blue Team and launching an attack on them as she isn't sure who exactly O'Malley infected. The Blues manage to convince her that they are aware of the situation, but Tex ends up becoming enraged once more when she realizes that the Blues have a new female recruit. Sometime thereafter, Tex - along with Church and Tucker - stage an offensive on the Red Team's base after being ordered by [http://rvb.wikia.com/wiki/Vic_Jr. Vic Jr.] to do so. After taking a non-lethal shot (to her ass) ) from Tucker using Church's sniper rifle (and mistakenly beating up Church in the process), the three capture the empty base. Tex is then radioed by Caboose with information regarding O'Malley's current whereabouts. According to Caboose, the AI had jumped into "the Blue leader," whom Tex mistakes for Church, and holds him at gunpoint. He explains that he was never officially promoted to the position after Captain Butch Flowers' death.

She later planned to work with O'Malley to win the war by controlling Junior and the aliens, but she was presumed dead after Andy detonated and their ship crashed in Valhalla. She was taken to Blue Base there and along with Gamma and O'Malley was captured by The Meta. She was destroyed in Chapter 19 of Reconstruction in the EMP.

Epsilon-Tex
Tex was brought back into the series in Revelation as Epsilon-Tex, a version of Tex created by Epsilon. For more information on this Tex visit the page Epsilon-Tex.

(Taken from the Red vs Blue Wikia)