The gaming giant is sending out Xbox Live invites to members tomorrow, enabling them download the beta for the eagerly-awaited new instalment.
Those lucky enough to glean early access will be playing the game a full 10 days before a multiplayer beta goes public on December 29.
The Verge reports the beta period will open at 9pm UK time on Friday and will remain available until 8am on December 22.
Halo 5: Guardians will be an Xbox One exclusive when it lands in 2015 and comes from 343 Industries, the studio responsible for Halo 4. The title, announced at E3 2014, will take “full advantage” of the Xbox One’s specs and run at 60fps.
Read more: Xbox One games to look forward to in 2015
You can take a look at the official E3 trailer in the clip below and, if you’re grabbing access to the beta tomorrow, be sure to share your experiences in the comments section this weekend.