Part Two initiates a flashback to a training facility several years before, Tex's ex-boyfriend Church — in standard-issue rookie blue armor instead of his cobalt armor from the main series — approaches Tex. He is concerned about the experiments being performed on multiple soldiers, including Tex, who has been told they each have a "unique ability". As Tex warns that Church should not even be talking to her, Wyoming appears and encourages him to leave. In narration, Tex reminisces about the experiments and the results: after the soldiers were given artificial intelligence (AI) to boost their combat skills, the test subjects grew progressively insane. Thus, an attempt was made to remove the AIs. Tex's AI, Omega (aka "O'Malley"), was one of the "difficult ones"; he forced Tex to escape from the facility before he could be removed from her head. Becoming aware of Tex's intent to destroy him, Omega soon learned how to transmit himself from person to person via radio signals, as he did to Caboose and Doc in Red vs. Blue season 1 and season 2 respectively. After this flashback ends, Tex observes Omega's fortress as seen in episode 73, and decides that she needs help to destroy him.
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