Quickly a short while later, Cortana took control over the fresh new ship

Throughout the lady day to your Ascendant Justice, Cortana presented uncharacteristic behavior as well as fury, distraction, and you may mind-question – an indication you to definitely she pancy

Cortana and John-117, apparently really the only survivors of your own Mainstay out of Autumn ‘ s crew following the Competition off Installations 04, found a small number of almost every other UNSC staff which had escaped the latest ring in a beneficial Pelican dropship. Comprehending that the latest Pelican was not with the capacity of traveling enough time distances, John-117, plus Cortana in addition to Pelican’s four-man crew, fought its method onto the Covenant flagship Ascendant Justice. She were able to increase toward ship’s firearms and you may Slipspace capabilities, in a position to posting they so you can white speed lower than Threshold’s environment. She following returned the new survivors to arrive, where in fact the group helped in order to rescue survivors of the Raid from Arrive at, in addition to the girl “mommy,” Dr. Halsey.

Cortana indicated that she had pulled a good amount of analysis from Halo, together with pure quantity of pointers clipped on the this lady control energy and you can slowed this lady down.  Dr. Halsey deleted certain research out-of their recollections to provide the woman so much more thought space, as well as study out of Sergeant Johnson’s immune protection system to your Flood – a result of Boren’s Syndrome.

It absolutely was along with showed that throughout the Cortana’s date on the Ascendant Fairness, she got grabbed a great Covenant AI, decompiled the fresh AI and you can copied a couple of their services: the ability to convert Covenant speech, in addition to capacity to create imperfect clones out of itself. Such capabilities, along with her private information about the brand new Halos, generated her most worthwhile with the UNSC.

Ascendant Fairness was efficiently fused which have UNSC Gettysburg. It actually was up until now you to definitely Cortana discovered out of a well planned Covenant violence in the world. John-117, including SPARTAN Blue Class and an enthusiastic expendable clone away from Cortana (with all the research the real Cortana got she try merely also beneficial so you can chance), perform later on play Process: First-strike.

Since it proved, the fresh new Covenant AI one to Cortana had decompiled had managed to, just before the need, publish a contact across the Covenant Battlenet, caution the fresh Covenant of its ship’s need and you will giving the desired computations having a sandwich-atmospheric Slipspace dive. All the information try later on used by the brand new Prophet regarding Regret to help you go into Slipspace right significantly more than The fresh Mombasa during the Battle from Mombasa.

John-117 and Cortana create afterwards go back to Earth, from which part Cortana handed all the sensitive and painful investigation in the lady possession out to ONI, in the event she held onto the Index and you will apparently nevertheless possessed particular research towards Halo network including critical information regarding the new Ark.

Competition regarding World

Immediately following returning to Earth, Cortana served towards the Orbital Shelter Program Cairo, where a ceremony for SGT Johnson, John-117 and CDR Miranda Keyes is in the near future disrupted of the arrival out-of a beneficial Covenant Fleet beneath the demand of Higher Prophet away from Be sorry for, undertaking the battle out-of Environment. Cortana got control over this new Cairo ‘ s Magnetized Accelerator Canon so you can repel this new intruders, sufficient reason for John-117’s let, she effectively deactivated a great Covenant bomb who have missing the channel. She performed this of the publishing so you can John-117’s armor again the very first time as the bring regarding Ascendant Fairness. When she did so it, she for some reason was able to do so as a result of him simply coming in contact with the fresh critical the girl hologram try to your, possibly an improvement down to John-117’s brand new age bomb ended up being utilized by SPARTAN-117 to destroy a beneficial Covenant Violence Service provider. John given on her to keep behind into the station shortly after she said that his bundle try in love, but she decided to supplement your anyway. [16] She up coming helped him as he arrived in The Mombasa to deal with a great Scarab. [17]