From Halopedia, the Halo wiki
Okro 'Vagaduun is an experienced Sangheili blademaster in service of the Banished. During the Second Ark Conflict, Atriox put him and his men under the charge of Chieftain Minas while on a mission to retrieve a slipspace flake from the Anodyne Spirit. 'Vagaduun was present on Installation 07 in early 2560.
War for the Ark
To enact his plan to return to the galaxy for some unspecified business, Atriox needed the fragments of a slipspace flake stored within the keyship that the Prophet of Truth had used to travel to Installation 00. These shards would allow for a slipspace portal to be opened to the human colony of Reach. As such, Atriox chose 'Vagaduun to participate in a raid on the vessel led by Chieftain Minas.
The blademaster led a team of Sangheili warriors while Minas and Captain Zeretus led two other teams, both composed of choice Jiralhanae, Kig-Yar, and Unggoy soldiers. Each team rode in a separate Phantom dropship to where the Anodyne Spirit rested in a region of the Ark they had dubbed Mahsko. Once inside the keyship, 'Vagaduun expressed confidence that the the vessel was indeed devoid of any living beings, but that they should still be careful regardless. His caution was proved to be well-founded when Covenant loyalists ambushed the group, attempting to repel them from the ship that had landed on the Ark nearly seven years prior.
Displaying his masterful swordsmanship, 'Vagaduun's efforts were vital to the success of the mission. As Minas's team found the Forerunner device called "the Adytum" and extricated the shards from within it, the Sangheili and his team valiantly—and perhaps overconfidently—held off the Covenant defenders. 'Vagaduun and Minas were the only two survivors of their respective teams, the others having sacrificed themselves so that they might escape the keyship with the crystal. After they reunited with Zeretus and his team, that is exactly what they did. They evacuated in the same Phantoms that they had used to approach the vessel.
Conflict on Zeta Halo
Fitting of a Sangheili blademaster, Okro 'Vagaduun is known to wield a Type-1 energy sword. He is also proficient in the use of plasma-based weaponry. During the raid on the Anodyne Spirit, 'Vagaduun was seen dual wielding enemy plasma rifles to great effect.
List of appearances