Jiralhanae Minor

Brute Minors are the youngest and most inexperienced Brutes (Jiralhanae) of the Covenant.

Background
Minors in Halo 2 had little or no armor, though in Halo 3, the Minors/Regulars have a complete armor set that is turquoise in color.

Combat against Minor Halo 2 Brutes
These Brutes have not yet earned the right to carry a Brute Shot which makes confronting them somewhat easier than it is for their higher ranking counterparts. Since they do not have helmets, it is easy and best to use headshots from a Sniper Rifle, M6C Magnum, or a Beam Rifle.

They often make tactical errors such as standing in one place while firing, or rushing forward into enemy fire. They also fire in shorter bursts, and have somewhat less accuracy and lower rate of fire. They usually wield Covenant Carbines, or Brute Plasma Rifles. Still, it is foolish to underestimate a Brute of any rank.

Bungie Studios was not very happy on the outcomes of the Halo 2 Brutes. They said that they were only damage sponges and weren't as fun to kill as Bungie wanted them.

Combat against Minor Halo 3 Brutes
Much like the Halo 2 Brutes, they are not high in rank and therefore do not wield the far more dangerous weapons like the Gravity Hammer, but a Brute is dangerous nonetheless. And now with their new armor are far stronger. They most often use Plasma Rifles, Covenant Carbines, and Spikers. Also, they have a turquoise armor. Even though other ranks have the same armor shape they are not the same ranks.

Other than this, little is known about Halo 3 Brutes.