From Halopedia, the Halo wiki
The Halo 3: ODST PC trailer was released in September 22, 2020. It depicts Halo 3: ODST campaign and multiplayer gameplay as the fifth title release for the Master Chief Collection on PC.
ONI Archive: Noble Endeavors • Conflict Evolved • Changing Tides • Allied Forces • Helljumpers • Reclaiming Our Place Menu Backgrounds: Echoes of Heroes • Unseal the Hushed Casket • Machine & Nerve • Finish The Fight • Prepare to Drop • Wake Up, John