A lot of major concern over customization is how seemingly limited it feels at the moment.
One of the concerns is that the campaign will not have an adequate amount of armors that will come with it.
343 you can have a dev or an exec make a tweet or a statement confirming that there is a good deal of customization coming with the campaign and it will cool a lot of the fire.
One of my fondest memories of Halo is finally beating Halo 3 on legendary & unlocking EOD, it truly felt like I was being rewarded for the time invested
I’m going to be a little disappointed if Infinite doesn’t have a reasonable Legendary completion reward.
it’ll probably just be a vehicle sticker ಠ_ಠ
From little I’ve seen of people playing campaign, there are Armor Lockers you find across Zeta Halo that unlock multiplayer customization.
they will probably make us buy campaign inspired armor in mp
crap, good point. hopefully none of the campaign armor and weapons is being locked. well.
hopefully the campaign ones aren’t locked in the paywall too, lol.
It wouldn’t make sense for any armor an AI Spartan wears in the campaign to not be earnable from the playing/completing the campaign.
We’d already have paid for those assets development by purchasing the campaign, they’d need to be available through gameplay. If not… then oh boy that’d be some real double dipping.
It has been confirmed that there are cosmetic unlocks from playing the campaign, but they haven’t said anything more than that.
Everything I have found so far has been coatings, emblems, and a pose… there needs to be armor.
I think one of the Youtubers mentioned that he found ‘evidence’ in the campaign preview that ‘leaked’ cosmetics weren’t the only cosmetics in the campaign, but that he wasn’t permitted to talk about them.
He heavily implied it was armour, but we’ll have to wait an see I guess.
Based on the campaign leaks, answering this question would not ease concerns 
If not armour, hopefully a lot of coatings and not just emblems and stuff
If theres not armors I’m not buying it