Xytan 'Jar Wattinree

Imperial Admiral Xytan 'Jar Wattinree was a Sangheili naval officer with the rank of the Imperial Admiral, in regent command of the Combined Fleet of Righteous Purpose.

The Great Schism
Commanding his fleet he played a considerably large role in the Great Schism. 'Jar Wattinree was one of the first Elite leaders to take command of the confused Elites and rally them at Joyous Exultation. There, they moved in to ambush the Jiralhanae and destroy them, putting an end to the Great Schism before they could destroy the Flood. The Imperial Admiral had no illusions about the true nature of the Halo Rings or the Flood, still believing in the original Covenant beliefs and also plotted to wipe out the Humans and their Spartans.

Unfortunately, his flagship, Sublime Transcendence, was destroyed by a UNSC NOVA Bomb they had taken from Reach. Whether or not he was aboard the ship (or on Joyous Exultation) at that time is unknown.

Appearance and Personality
He was legendary and extremely illustrious amongst the soldiers of the Covenant. He had never been defeated in battle, he had never failed at any task, no matter what the challenge, and he was never wrong. His only flaw was that he had been so revered, some respected him above any San 'Shyuum and for that he had been exiled to lead a fleet only at the fringes and outskirts of the vast Covenant Empire.

Naturally, any legendary hero through an average warrior's eyes is given to be of godly stature, generally through the physical trait of height, a particular example of such would be that of Odysseus of the Odyssey—note how in which the story emphasizes his heroic traits, some of which are being very tall. The book itself stated the admiral's well being to be no less than a god. It is apparent that in order to demonstrate Xytan's heroism throughout the Covenant they emphasized heroic traits. To do this, they emphasize height and, to perform such, Eric Nylund hinted they might have used raised platform boots or possibly another hologram.

The armor he wears is portrayed as "silver armor covered with the gold Forerunner glyphs of sacred mystery." Such silver-and-gold Sangheili armor has yet to be seen or mentioned elsewhere, and may be superior in quality to the gold armor of a Zealot or even a Councilor. Silver metals are possibly rare among the Covenant, so armor with such appearance is probably highly valuable and is of the highest prestige.

Trivia

 * 'Jar Wattinree was over eleven and a half-feet tall, a giant even amongst the average 7'4" foot Sangheili. However, it may be an illusion, given his image is projected by a holographic generator, or that he wears a ceremonial headdress, somewhat similar to that of a Councilor.