Jiralhanae Bodyguard
From Halopedia, the Halo wiki
Template:Covenant Rank Infobox The Brute Bodyguard is a Brute (Jiralhanae) specialty rank[1]. They are responsible for the protection of their packs Chieftain. They are also responsible for the enforcement of tribal law. Whenever there is a Chieftain nearby, you will encounter Brute Bodyguards which look very similar to Captains. Bodyguard Brutes are also seen to be protecting Truth on the level The Covenant. They are likely the replacement for the Honor Guard being that Tartarus also had Honor Guard protection. Brute bodyguards seem to favor Covenant weapons such as the Plasma Rifle and Carbine rather than their own native tech. They come in two variants: A more common, silvery-blue[2] (with red underarmor) variant, and a less common, silver armored (with red underarmor) variant. Whether these variants signify differences in behavior or strength is unknown as of yet.
Differences with the Brute Captain
The Brute Captains and the common Brute Bodyguard look well the same (especially in dim light), but there are slight differences in their Power Armor color. The Brute Captain Regulars have a violetish tinge to the armor, but the Bodyguards have a more indigo color and their underwear is red.
Sources
(on the reference about the silvery-blue armored Brutes proof of them being Bodyguards, note that Sierra 117 does not have any silver armored Brute Bodyguards)