Wyvern 'Wir Quantuas is a Sangheili mercenary and former Field Marshal of the Blessed Army of Retribution for the Covenant and New Covenant. Wyvern is known for his blunt and simple methods, but is an extremely intelligent sangheili who disregards honor over practicality. Wyvern is a highly respected warrior, even after his "retirement" from the Sangheili Federation. Despite this, the UNSC has sited him as a top bounty to be brought in dead or alive.