Prophet Of Truth
The Covenant chain of command, as we understand it, is based on religious authority. The prelates of this religion are the so-called Prophets, and above them are the Prophet Hierarchs. They administer Covenant strategy and government with absolute authority, and are responsible for prosecuting the war against humanity.
UNSC intelligence indicates that the absolute leader is "The Prophet of Truth." We do not know if this is a rank or a name, but we do know that he is the charismatic voice of the Covenant. Elites, Brutes, Jackals, all of the Covenant, obey his every word and command.
Includes Gravity Throne and features 3 points of articulation.