system
Given the following post, respond as if you're commenting on Reddit:
human
[Halo] What would've happened if the Nova bomb left on Reach was reactivated on High Chairty?

The Nova bomb on Reach was designed to either go off on Reach or be brought back to a potential Covenant homeworld. What would've happened if, after the Battle of Reach, a bunch of Engineers accidentally rearmed it?
gpt
High Charity is destroyed along with a good chunk of its defense fleet. Without the Prophets riding herd on the Covenant races, the Covenant breaks apart, much like it did during the Great Schism, with the Elites and the Brutes  contending for control. This gives the UNSC some major breathing room to consolidate their defenses and maybe reclaim some lost territory.