Huragok

Huragok, also known as Engineers and Savants, are the only known non-combative race amongst the Covenant forces. They were artificially created by the Forerunners. They are an incredibly peaceful race, and frowned upon the Human-Covenant war. They are silent beings, and speak in a form of sign language. One Huragok, Lighter Than Some, was ironically the first member of the Covenant to kill a human. As a peace treaty to the humans, he made the Brute Chopper. It was later used by the Jiralhanae as a weapon. They are generally very antisocial, and will only talk to eachother and to their superiors the Prophets.