Troy Denning wrote Operation: METEORITE prequel for Halo: Campaign Evolved

Halo: Campaign Evolved isn't just a ground-up remake of one of the most formative first-person shooters; it's also expanding the story with a prequel titled Operation: METEORITE. During today's Xbox Showcase 2026 for Summer Game Fest, footage showed the new prequel missions that send the Chief and Sgt.

Johnson across enemy lines onto a Covenant research vessel and into space combat. Community director Brian Jarrard said, "What starts as a simple smash and grab turns more complicated as they encounter more than they bargained for," describing the three new missions.

To help shape that story, Halo Studios recruited New York Times bestselling sci-fi author Troy Denning. Denning has written dozens of acclaimed novels going back to the '80s, including almost 30 D&D novels, more than a dozen Star Wars expanded universe books, and several celebrated Halo tie-ins.

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