"It's unfortunate when work-in-progress content leaks, but this Halo 5: Guardians content is part of our ongoing private, external testing for multiplayer. We will continue to rigorously test Halo 5: Guardians to ensure the best possible experience for fans at launch."

So does "private, external testing" mean 343I and Microsoft employees taking things home to work on (as is usual), or is there an invite-only 'outside of 343I' beta going on that some of us HBOers could get invited to? Thought it was worth asking.

- MacGyver10