Aboim

Lieutenant Colonel Aboim was a UNSC UNSC Marine Corps battalion commander in 2524. He was Staff Sergeant Avery Johnson and Staff Sergeant Nolan Byrne's commanding officer during Operation: TREBUCHET. He commanded them during actions on Tribute while searching for Insurrectionist bomb-makers from the TOC of the. He ordered them to pursue a bomb maker to a Jim Dandy restaurant, where a disaster out hostage situation ensued, leading to the deaths of three Marines, 38 civilians, and two Insurrectionists, as well as the injury of Johnson and Byrne.

He later gave each sergeant notes detailing the result of the mission, along with leave from Operation: TREBUCHET.