How would you make an Armor unlock system

Hey after thinking about this for a while I was wondering what other people thought of this. My idea is like Reach but you don’t have to level up to see all the armors you can get.

I haven’t thought about it but realistically it would be reasonable to assume that halo 6 will have micro transactions. So maybe one should think what kind of system with micro transactions would satisfy the gamers most.

There’s plenty of on going discussion threads where this sort of thing would fit.