Rtas 'Vadum

Rtas 'Vadum, (formally known as Rtas 'Vadumee before the Covenant Civil War) was a Sangheili Commander of the Covenant Army before the Great Schism, and after the Great Schism he served as Shipmaster.

He was the only known Special Operations Commander of the Covenant Army in the Halo series, a title which he held before the civil war. As the Ship Master of the Shadow of Intent and the de-facto commander of the Fleet of Retribution, he had a pivotal role during and after the Battle of Installation 05.