Jiralhanae Minor

Jiralhanae Minor is the lowest and most common Jiralhanae rank. The Jiralhanae who have this rank are the youngest and most inexperienced in the Covenant. They are very weak compared to Major Brutes, but still can be challenging, especially on Heroic and Legendary.

Background
The Minors in Halo 2 had little or no armor or helmets, though in Halo 3, the Minors have acquired a lustrous cyan hue Power Armor, but lacks the shoulder and knee pads, and ankle armor of the higher ranks. They still have chest and back armor, and unlike before, a cyan helmet.

Halo 2
These Brutes haven't yet earned the right to carry a Brute Shot, which makes confronting them somewhat easier than it's higher ranking counterparts. Since they don't have helmets, it is easy and best to use headshots from a Sniper Rifle, M6C Magnum, Beam Rifle, Carbine, or a Battle Rifle.

They often make tactical errors, such as standing in one place while firing or rushing forward into enemy fire, which can be used to one's advantage. They fire in shorter bursts and have somewhat less accuracy and lower rate of fire. They usually wield Covenant Carbines or Brute Plasma Rifles.

Bungie was disappointed on the outcome of the Halo 2 Brutes. They stated that they were "damage sponges", and weren't as fun to kill as Bungie wanted them to be. A player could simply kill them by standing back and rapidly shooting at them with the Needler or any other weapon.

Halo 3
Much like the Halo 2 Minor Brutes, they are the lowest in rank and therefore do not wield the far more dangerous weapons such as the Gravity Hammer. They often use Spikers, and occasionally Carbines or Plasma Rifles. In addition, they have turquoise armor. Brute Minors are never encountered alone, typically attacking in packs of 4-6 at once under the command of a Brute Captain. On Heroic difficulty, they can withstand about 24 MA5C Assault Rifle bullets or 13-16 Plasma Rifle bolts; 7 bullets or 4 plasma bolts to drop their shield, and an additional 17 bullets or 9-12 plasma bolts to kill them.

One of the best and quickest ways to kill them is by using the Noob Combo. On lower difficulties, you can melee them to save some ammunition. However, use extreme caution when combating Brutes in hand to hand combat as even Minors have the ability to kill obstinate players. On lower difficulties if you get one or two Minors wielding a non-vicious weapon in between yourself and a Brute with a Brute Shot, the Brute Shot Brute may fire at you, miss, and kill the Minors. However, this is merely for fun and should not be regarded as strategy. The Brute minors have the least combat experience and are the easiest Brute warriors to kill. Frag Grenades are an excellent strategy on Legendary, especially when you have U-shaped cover. Attack the Brutes and then run to the other side of your hiding spot, throwing a grenade while the Brutes' attention is directed elsewhere.

Trivia

 * Although the Brute Shot is reserved for higher ranking Brutes, Minors have been known to use it on The Covenant.
 * When any other Brute rank gets infected by the Flood, its armor turns into the armor of a Minor.
 * This rank has frequently been used erroneously to identify Brutes wearing complete infantry-type Power Armor (Jiralhanae) in marketing campaigns and videos like Halo: Landfall, Believe, and We Are ODST, which is often gray in coloration. This rank has even been applied to a Jiralhanae wearing Stalker-type Power Armor (Jiralhanae).
 * One of the many mistakes of the Halo Encyclopedia includes replacing an image of a Brute Minor with a Major.