Light of Truth (Earth-5875)

"Our Hierarchs are false. Open your eyes, my brothers... they would use the faith of our forefathers to bring ruin to us all. The Great Journey is a lie!"

- - Sesa 'Refumee

The Light of Truth was a Covenant splinter faction who disbanded from the hegemony not long after the Battle of Installation 04. Originally artifact retrievers, they learned the truth about the Halo Array by 343 Guilty Spark, and started to denounce the Path as a lie, prompting the Hierarchs to send Arbiter Thel 'Vadamee to eliminate 'Refumee and the group.

History
On September 21st, 2552, Sesa 'Refumee took command of an artifact retrieval group attached to the Fleet of Particular Justice, alongside Loka 'Bandolee. After the fleet arrived at Installation 04, in the Soell system, while pursuing the UNSC Pillar of Autumn from Reach, which it had just destroyed, 'Refumee and his soldiers were sent by the Prophet of Stewardship to investigate the Threshold Mine that lied orbiting Threshold. Fleetmaster Thel 'Vadamee did not condone with this action, as he believed all of his forces should be dedicated to eradicating the humans on the Halo ring. Because they wasn't present on the ring, 'Refumee and his men survived the battle when John-117 detonated the engines of the Pillar of Autumn, and were left stranding on the gas mine when most of the Fleet of Particular Justice was destroyed or left the system.

Following the destruction of Installation 04, its Monitor, 343 Guilty Spark, traveled to the Threshold Mine, where he encountered hostile kig-yar soldiers, members of 'Refumee's unit. 'Bandolee saw the kig-yar attacking the "Oracle" and killed them, bringing him to 'Refumee. There, the Monitor "edified" Sesa and his men about the truth of the Halo Array, the fate of the forerunners, and the history of the xenomorphs, which made them realize the teachings of the san'shyuum, the Path, and the Great Journey were lies. He considered revealing this information to Fleetmaster 'Vadamee, but considered he would not trust him no matter what. 'Refumee then took the sangheili, unggoy and huragok under his command to revolt against the Covenant, forming the Light of Truth. He then fortified the mine with defenses, anticipating a violent response from the Hierarchs.

He spread the truth he learned through Covenant space, hoping to rally others to his cause, which infuriated the Hierarchs. Branded a traitor and a heretic by the Hierarchs, Sesa became the most wanted person in Covenant space. The Hierarchs sent Thel 'Vadamee, who had been branded the new Arbiter, to silence 'Refumee and his destroy his rebellion alongside a Special Operations team led by Rtas 'Vadumee. In order to protect himself, 'Refumee released the xenomorphs that were stored aboard the mine to kill the Arbiter and the Special Operations team, but his efforts backfired and the xenomorphs started killing both sides. When a lethal storm raged outside, Sesa hid within a protected zone of the station, hoping that the storm would kill the Covenant soldiers. The Arbiter then cut the cable that maintained the gas mine, sending the station falling to Threshold's atmosphere, which made Sesa run from his hiding. As he attempted to escape aboard a Type-31 Seraph, the Arbiter cornered the heretic leader, and the two battle. Despite Sesa's use of holo-drones to confuse and kill the Arbiter, he was killed by Thel, who retrieved 343 Guilty Spark from his possession.

With 'Refumee killed, his followers all but slaughtered, and 343 Guilty Spark in the possession of the Covenant, the Light of Truth's heresy was no more. However, 'Refumee's ideals consequentially led the Arbiter to start questioning his faith, which was later put to test by the Gravemind, John-117, Spark, and 2401 Tangent Penitent, giving rise to 'Vadam's rebellion and foundation of the Swords of Sanghelios, following the Light of Truth's atheistic ideals.