Super-soldier John-117, Master Chief of the United Nations Space Command, must battle a genocidal alien race known as the Covenant following his violent crash-landing on Halo, an ancient and... Read allSuper-soldier John-117, Master Chief of the United Nations Space Command, must battle a genocidal alien race known as the Covenant following his violent crash-landing on Halo, an ancient and mysterious ring-world.Super-soldier John-117, Master Chief of the United Nations Space Command, must battle a genocidal alien race known as the Covenant following his violent crash-landing on Halo, an ancient and mysterious ring-world.