Covenenant Grunts

Grunts, otherwise known as Unggoy, are the lowest of the low in the Covenant hierarchy. They have combat training and are commonly used as cannon fodder in battles, but even then they are basically worthless. Their numbers make up for their strength. However, they would rather run from battle and save their own lives, although their courage is usually brought about by that of their Elite (and Brute) leaders. They generally wield plasma pistols, but the higher ranking ones can be seen with fuel rod cannons. They are also known to be coward and can be real talkative in contrast to other Covenant species. They were first introduced in Halo: Combat Evolved in the very first level.

In CAMEO!
Covenenant Grunts are confirmed to appear as an enemy.