He was SSgts Avery Johnson and 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 UNSC Bum Rush. He ordered them to pursue a bomb maker to a Jim Dandy restaurant, where a hostage situation ensued, leading to the deaths of three Marines, 38 civilians and two Insurrectionists, as well as severely injuring Byrne.
He later gave each sergeant notes detailing the result of the mission, along with leave from Operation: TREBUCHET.
- Halo: Contact Harvest (First appearance)