Halo is a game that has a wide range of enthusiastic fans that are waiting patiently for the next game to launch under the HALO brand and we have already learned that the next game from Microsoft in the HALO Series is going to be HALO Infinite which would be a Multiplayer game to play. Now if you are a diehard HALO fan and want to stay away from spoilers then I suggest you stay away from Reddit threads for quite some time as it seems Microsoft has leaked some stuff from HALO Infinite quite willingly.
Some of you might wonder why would Microsoft do such a thing as obviously it spoils the excitement of the anticipation but I feel like this was a strategic decision for them as the game was supposed to be launched by 2020 which got delayed due to Covid and truth be told they needed some sort of hype to make people talk about HALO for a while so these leaked campaign files will definitely keep things interesting in the HALO community for a couple of months.
This also seems to coincide with one of my theories which is that HALO Infinite may be launching within 3 months and this leak was done so that they can keep up the hype for the game while the game is about to be launched. It's a Classic Marketing Policy and there's nothing new about it but this also makes it easier for us to predict such launches sometimes.