Mgalekgolo

Large hulking mounds of worms that have gathered together to form a sentience, covered in bulking armor of varying colors however leaving their back and neck unprotected, they sport a fuel rod cannon mounted on their arm and a two ton shield made from an unknown alloy that is also used as the plating for covenant ships. The Lekgolo evolved on their homeworld of Te, discovered by the Covenant during an operation to find Forerunner artifacts. Crush the Humans