It looks increasingly likely Halo Infinite's multiplayer will be made available to play on Monday, 15th November.
Twitter user Adam Fairclough revealed Xbox store data for Halo Infinite multiplayer included reference to the 15th November date.
There's also mention of a 6pm timing - Microsoft will broadcast a special show to celebrate the Xbox's 20th anniversary on 15th November at 6pm UK time.
Xbox store data for Halo Infinite multiplayer 👀 pic.twitter.com/HYxtEfco8M— EvilBoris (@EvilBoris) November 12, 2021
Halo Infinite's official release date is 8th December - that's for the campaign and the free-to-download multiplayer.
Microsoft has run a series of technical previews for Halo Infinite multiplayer, showcasing different aspects of the game. Perhaps it plans to surprise drop a new one on Monday to coincide with the Xbox 20th anniversary show.