Brutes

Brutes are a stupid race of apes that live on Dosiac. They were so stupid that, although they managed to achieve space-faring technological advacements, they ended up destroying them all in a massive civil-war that set them back into the dark ages. They were accepted into the Covenant to replace the Elites by the command of the Prophet of Truth, which was a bad idea because the Elites had kept the Covenant going for thousands of years, and once the Brutes were conscripted it fell within a week.

They have almost no IQ, with their Chieftains being elected because they are the stupidest in the tribe, and the Brutes decisions are based on which option will almost certainly end in failure. They dont have individual names because they are so stupid, and they can't use proper Covenant weapons, they had to have special ones made just for them. The Brutes are now extinct after the Elites glassed their homeworld of Dosiac. This is why there are no Brute Members of the League. The last Brute to be a League Member was Tartarus, Supreme Chieftain, but he was killed by the Arbiter.