Oh and Frankie said this:
"It’s something that Halo enables and something that Bungie knew was important to the soul of Halo," O'Connor said of multiplayer in an interview with NowGamer. "You’ll still do it but it’s like Halo the way you play it now. That will be an option, you just go and find how you do that within a very nice UI, you can just go and find the exact same thing that you are addicted to doing.