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In September 2552, 'Ontomee was assigned to the Fleet of Particular Justice when it arrived at Installation 04. 'Ontomee took part in the campaign, eventually being tasked to secure the crash site of the UNSC Pillar of Autumn following the raid conducted by First Lieutenant Melissa McKay days prior.
During the final days of Installation 04, 'Ontomee and his overworked, undermanned staff received fortunate relief in the form of Zuka 'Zamamee (under the alias of Huki 'Umamee) and Yayap. Without asking questions, 'Ontomee put them in charge of twenty Kig-yar, and assigned them to inspect and unload supplies.
Under attack from both Flood and Forerunner constructs, 'Ontomee and his staff were further troubled when John-117 arrived on board the ship with the intention of destroying the entire Installation 04. 'Ontomee called a meeting of his staff where he, 'Kasamee and Zuka 'Zamamee discussed the Spartan. Zuka 'Zamamee agreed to hunt him down, much to 'Ontomee's relief.
'Ontomee was presumably killed when the Pillar of Autumn's fusion generators exploded.
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