Wait, So What Happens at the End of 'Halo: Reach', Exactly?

Some people might not be familiar with how the prequel sets up the original game, 'Halo: Combat Evolved.' So what happens at the end of 'Halo: Reach'?

Halo' Season Finale Recap: [SPOILER] Dies In Spartan-Covenant Battle – Deadline

The Pillar of Autumn - Campaign level - Halo: Reach - Halopedia, the Halo wiki

How Halo Infinite Became the Franchise's Own Star Wars: The Force Awakens

Examining Halo: Reach's Beautifully Bleak Ending

Halo Infinite' Forge release date and beta details

Halo TV Series - Episode 3 Recap - 'Emergence

Halo Infinite Release Aims to Lift Xbox Prospects - The New York Times

Halo: Reach (Video Game) - TV Tropes

The Descent of Master Chief into the Bowels of Halo

The complete Halo timeline - Polygon

Halo Infinite's terrible, horrible, no good, very bad year