Jiralhanae Captain Ultra

Were you looking for Brute Ultras?

The Captain Ultra is the third highest attainable rank a Brute can achieve which are seen in Halo 3 and Halo 3: Odst, next to Honor Guards and Chieftains. They wear cyan Power Armor, which signifies higher rank than the gold Brute Captain Majors. They seem to be the Jiralhanae equivalent to a Colonel and can command larger packs than their lesser ranks.

Rank Differences
Some think that all three Brute Captain Ranks are equal, but that is not true. Others mistake which color signifies which rank. The Captains have violet power armor, Captain Majors have gold power armor, and Captain Ultras have cyan armor as shown on the right. The cyan color can be mistaken for a Brute Bodyguard's, which is a light cobalt color, and the Bodyguards possess a red undergarment, as opposed to the standard one worn by the Captain Ultras. Captain Ultras are an approximate counterpart to Ultra Elites, given the number of troops they command, their superior strength and tactical ability, and their rarity on the battlefield.

Combat Behavior
Captain Ultras are very strong. They can take multiple hits from any non-explosive weapon to kill them. The best alternative to an explosive or powerful weapon for these Brutes is the Battle Rifle to the head, which allows the player to hit them from a distance and kill them with few shots. A single Plasma Grenade can kill them along with a Spike Grenade, provided they detonate nearby. Ultras are rare in lower difficulties but more common on Heroic and Legendary. The Plasma Pistol's overcharge shot can come in handy as well. They are generally seen leading lesser Brutes, Grunts, and Jackals into battle.

Trivia

 * Despite possessing much stronger shields than the Captain Regular ones, and slightly stronger than the Captain Major ones, they are still a bit below those of a Major Domo Elite: in fact, on the Normal difficulty, a single shot from a Beam Rifle will destroy the Power Armor of an Ultra Captain, but won't drain completely the shield of a Major Domo.
 * Interestingly, neither a Captain Ultra, nor any other kind of Brute Captain, has ever been seen manning a Wraith or a Prowler. Also, the only way to make them drive a Chopper is to let yours be hijacked.