Microsoft's highly-anticipated AAA title Halo Infinite is scheduled for a release this fall, but a technical preview for the multiplayer component was made available for Halo Insiders just a couple of days ago. While the feedback regarding multiplayer gameplay – albeit, with bots – has been fairly positive so far, those interested in the campaign might be in for a unpleasant surprise.

Halo Infinite Master Chief

Following some leaks on the internet, Joseph Staten, the project lead for the campaign in Halo Infinite, has confirmed that Microsoft inadvertently included some campaign files in the tech preview of the multiplayer release. He tweeted that:

Hey folks, heads up: we unintentionally included a small number of #HaloInfinite campaign files in the tech preview build. Unfortunately, these files contain spoilers.

Leaks like this are painful for the dev team and can ruin the campaign experience for everyone. So please, keep you eyes peeled for spoilers and don't spread them if you see them.

Naturally, data miners who don't mind the game being spoiled for them have extracted the campaign files in question, and information has leaked on to the web. The Verge has discovered a plaintext dump containing 800 lines of text from the campaign. According to the outlet, the strings describe some quests, plot points, and unfortunately, even a major plot twist that likely takes places towards the end of the game.

Needless to say, we won't be linking to or reporting about the spoilers themselves, but those interested in the Halo Infinite campaign need to keep their guard up when browsing the web.