I don't understand Halo 5's legendary ending:
In the legendary ending, we see a Halo, which seems to be next to some planet other than Earth, starts glowing alongside the back.
What does it mean, exactly? Does this mean Cortana has gained control over that installation, and that it's under her control, or is it just another Halo that has reactivated?
In the regular, we learn that Exuberant Witness forces Cortana and her Guardian out of Genesis, but we learned that Cortana and her Guardian have already found where the Infinity's location is and has started to wreak havoc among the planet where the Infinity is. Since that planet is nowhere near the planet depicted in the legendary ending, how is it that Cortana can gain control of that ring as well?