Earlier on, the official Halo account on social media shared a post seemingly inspired by Rockstar's recent Grand Theft Auto 6 trailer announcement. It teased a "new trailer" on 4th December, and while it's not confirmed just yet what exactly it's for, there's a good chance it's for the new Firefight: King of the Hill mode in Halo Infinite.
This latest Mid-Season Update will drop the day after the trailer (as well as a Firefight deep dive) on 5th December. Firefight: King of the Hill will see you and three other Spartans facing off against waves of Banished baddies as you fight to capture hills across nine different maps. This includes House of the Reckoning from Halo Infinite along with three community-made maps.
Apart from this, this latest update will also add 'Repair Field' - a new neutral piece of equipment that heals allies as well as enemies and vehicles. It also can revive Spartans in select modes. In addition to this, there will be Ranked mode quality-of-life updates, Forge updates, custom game browser updates tied to Firefight and a bunch of stability and network improvements.