From Halopedia, the Halo wiki
Orsun was a Jiralhanae captain serving with the Covenant and later the Keepers of the One Freedom. Serving alongside Castor for much of his career within the Covenant military, Orsun later became Castor's second-in-command when the latter ascended to the status of Dokab within the Keepers. He participated in the Gao conflict in July of 2553. After the conflict, he continued to serve as Castor's second-in-command as the Keepers rebuilt their strength at Salvation Base until its destruction. While chasing Papa-10 to Pinnacle Station above Meridian, Orsun was killed by an M19 missile fired into the True Light by Lieutenant Bartalan Craddog as Orsun emerged from the vessel. He had a son, Krelis, who served as Castor's subordinate after his demise.
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