O'Connor (Earth-5875)

O'Connor was an Auton synthetic who acted as the executive officer of the UNSC The Heart of Midlothian. He spoke with a strong Irish English accent.

Biography
When the Covenant sent a Special Operations unit to board the ship, O'Connor was the only survivor alongside ODSTs Sergeant Michael Baird. He was able to hide, and once he found Baird he retoled the events that transpired aboard the ship while he was knocked out. Baird questioned why he couldn't activate the ship's self-destruct system in accordance to the Cole Protocol. O'Connor then revealed that the boarding party was different, and that they were destroying all of the ship's systems to avoid self-destruction. He also revealed that the boarders had brought a species that was rarely seen and documented during the war. The only way for O'Connor to activate the self-destruct system was for Baird travel to the ship's control room and reopen the uplinks of the ship so O'Connor could interface with it.

After Baird was almost killed by Covenant forces, O'Connor was only able to awake him thirty minutes later, giving the ODST four medicines, including a Rumbledrug, used by Insurrectionists to fight SPARTANs - it would slowly destroy his body, but leave him stronger and impervious to pain for a few minutes. After administering the drugs on himself, he moved to control room, encountering the Elite who led the boarding party and the huragok that were stealing the ship's data. Baird then dropped his stolen weapons and promised he would give the Covenant the coordinates to Earth if they allowed him to escape and live. The sangheili then roared at his soldiers and communicated with the huragok, agreeing to let Baird go if he helped them.

Baird reactivated the uplink systems of the Midlothian, removing the safety protocols that allowed O'Connor to interface and destroy the ship. Baird then gave a hard punch at the Elite, punching him as hard as he could, which broke his hand. The sangheili recovered and decapitated him with his Type-1 energy sword. O'Connor was able to destroy the ship seconds later, killing himself and all of the Covenant onboard.