Sesa 'Refumee

You may be looking for the Halo 2 level The Heretic or the machinima of the same name.

"The Elites are blind, Arbiter, but I will make them see."

- Sesa 'Refumee

Sesa 'Refumee was the leader of a group of heretics who had defected from the Covenant and taken control of a Forerunner gas mine over Threshold and a small outpost on Basis, the gas giant's moon which Installation 04 rested between.

Heretic uprising
"I wondered who the Prophets would send to silence me. An Arbiter? I'm flattered."

- 'Refumee to Arbiter Thel 'Vadamee.

Sesa 'Refumee formerly led an artifact retrieval group within the Fleet of Particular Justice alongside Loka 'Bandolee. After the fleet arrived at Installation 04 in pursuit of the, 'Refumee's expeditionary group was sent to study a Forerunner gas mine above Threshold at the behest of the Prophet of Stewardship. As such, 'Refumee was not on Installation 04 when John-117 detonated the Pillar of Autumn's engines, destroying the ring.

'Refumee first encountered Installation 04's monitor, 343 Guilty Spark, shortly after the Halo's destruction. The Monitor "edified" him about the true nature of Halo, the fate of the Forerunners, and the origins of the Flood. Realizing that the Prophets' teachings were false, 'Refumee cut off communications to the fleet and led the Sangheili; Kig-yar and Unggoy under his command to revolt against the Prophets. 'Refumee then proceeded to fortify the gas mine with defenses, anticipating a response from the Prophets. He attempted to spread the truth to the rest of the Covenant in hopes that others would rally to his cause, which infuriated the High Prophets of Truth and Mercy.

Sesa was branded a traitor and a heretic by Truth, who sent Thel 'Vadamee, the newly appointed Arbiter, to execute 'Refumee and to quell his heretical movement. At first, 'Refumee tried to protect himself by releasing the Flood in specific areas to kill the Arbiter and his strike team. In the meantime, a perilous and lethal storm raged outside, threatening to kill the strike team if they could not find shelter. To force 'Refumee out of hiding, 'Vadamee cut the cable that prevented the station from falling into the gas giant. As he attempted to make his escape in a Seraph fighter, the Arbiter found him and engaged him in battle. Despite 'Refumee's clever use of holo-drones, 'Vadamee soon killed him and retrieved 343 Guilty Spark from the station.

With the death of 'Refumee and most of his followers at the hands of the Arbiter, and with 343 Guilty Spark in the hands of Tartarus and the Hierarchs, the heresy was quelled. However, its ideals were later revived during the Great Schism by the Covenant separatists.

Gameplay
For all intents and purposes, Sesa 'Refumee, on his own, is just a Sangheili Ranger with differently-colored armor and shields that could withstand up to two Energy Sword lunges, making him accurately comparable to an Ultra Elite. He utilizes two holo-drones to assist him in a fight and as a method to stay away from harm's reach. These holo-drones, when projected, create two identical models (albeit a darker armor tint) of himself, which deal real damage upon the player. When a holo-drone is "killed", the model will dissipate and the holo-drone ball will simply drop to the floor. On higher levels, defeating the first drones will make the real Sesa fly into one of the pipes and several more drones will appear. However, the real Sesa will often hide in one of the pipes on the top of the room. He will not respond to damage and can be easily killed with a Carbine or Needler.

Trivia

 * Sesa 'Refumee was voiced by Miguel Ferrer in Halo 2. He has a different, uncredited voice actor in Halo: Combat Evolved Anniversary; his new voice is deeper and much less gravelly than Ferrer's.
 * There is a glitch in which, if the player keeps lunging at 'Refumee through the window on The Arbiter, when he escapes on a Banshee the player will go through the window. If the player then throws a plasma grenade at the Banshee, he can not get in it. If he is pushed off the ledge he will die.

List of appearances

 * Halo: The Flood
 * Adjunct
 * Halo 2
 * Halo: Combat Evolved Anniversary
 * Terminals