 Halo rings are eponymous fictional megastructures and superweapons in the Halo science fiction franchise . They are referred to as " Installations " by their AI monitors , and are collectively referred to as " the Array " by the installations ' creators , the Forerunners . The series ' alien antagonists , the Covenant , refer to the structures as the " Sacred Precincts " and " the Domain ".
 everybody is in the same boat.
Halo rings are eponymous fictional megastructures and superweapons in the Halo science fiction franchise. They are referred to as "Installations" by their AI monitors, and