Ma'oruko

Ma'oruko (abbreviated Mko), known to the Coalition as death stalker, is a nonstandard, seldom assigned officer-grade rank unique to the Royal Empire and later the reestablished Covenant. It iss available only to Sangheili that have remained loyal to the Journey.
Those who hold the rank assume the role of an assassin of sorts; their primary objective in almost any given mission is to pursue, obtain, and/or eliminate objects of moderate priority.
==Known Rank Holders==
*Xar 'Mantakree
*The Zealot combat team that attacked SpecWar Group Noble during Winter Contingency, while not officially comprising Ma'oruko, performed the same role.