So it went like this: someone posted a game page to the Xbox One game store for the new Halo 5: Guardians beta, only they messed up the date and the page went live yesterday. Of course you know what happened next, sharp eyes picked up on the gaffe, and immediately posted to Reddit. While there wasn't much information available, and the page was quickly taken down, one noteworthy bit of news did escape, the size of the beta, which apparently will clock in at some 10.27GB when it really launches at the end of this month for a limited beta run.
Halo 5: Guardians is set to launch in beta on December 29th, lasting until January 18th of 2015, and will be available to anyone who has purchased the Halo: Master Chief Collection. If you are looking forward to Halo 5 Guardians Beta, start clearing up some hard drive space!