Legendary campaign straight of the bat.
It’s a difficult one, I’m undecided.
I imagine whichever I try first I’ll be absorbed into and spend most the day playing. If there is a weekly challenge live straight off the bat I might play some multiplayer first to get that wrapped up.
I’ll spend most the first week playing the campaign though.
Campaign. Halo is one of the few series I play campaign first, if at all.
Legendary campaign all the way! OORAH!
Campaign on Heroic. As-is tradition.
In the past I’ve always started out with heroic on campaign for atleast a few missions then I’ll jump into mp with friends then back and forth a little depending on if I’m on with friends at the same time or not if not I usually like to finish out the campaign
Multiplayer for the win. I have no idea when I’ll play campaign to be honest
100% campaign on Heroic. Then multiplayer.
Even as someone who prefers multiplayer, I will most definitely check out the campaign to see what it has to offer.
Campaign because the fact Campaign rewards returned I’ll be 100% running it on Legendary
Legendary Campaign first, MP second.
Campaign.
It’s been my tradition to play the campaigns first and then move to multiplayer for awhile before circling back to get the rest of the achievements.
However given the scale of this campaign I think I’ll be starting in campaign, but then switching back and forth between the two modes.
Always campaign. Have to make sure I play the majority of it before multiplayer so I don’t get spoilerino’d. This campaign is a little different with the open-worldness and probably collectable things throughout the map. After that though I will grind multiplayer endlessly.
Campaign.
I always play it first. Its a rite of passage
Campaign always first, but I might indulge in a few matches with friends.
Definitely campaign when I play it. Only question for me is when to play it.
I’ll do campaign first. The last thing I want is to go on discord after it releases and get spoiled before I play it.
Campaign on normal. I’m going to take my time and savor it.
I’ll be playing the campaign on easy difficulty first. The way I like to enjoy new games is easiest difficulty first (if there is difficulty scaling) so I can really just enjoy myself and the story and not be massively sweaty from the outset on my path to 100%. After that’s done, then I’ll do a higher difficulty (generally heroic) and try to tackle any achievements I missed during my easy run. After that comes legendary/laso where I really want to test myself.
Multiplayer will be thrown in there occasionally, but I am not the biggest fan of PvP (regardless of game or genre) so it’ll most likely be just enough to do challenges and achievements, most of which I’ll probably work with my mates to earn.
Plus there’s the whole business of not having to deal with spoilers if I play campaign first 
Definitely going to try campaign first as it has my curiosity piqued more than Multiplayer despite how good MP is looking and felt during the flights.