Reach MCC customization unlock requirements

I would just like to know how the unlocking system will work since it won’t have the credits system (which was pretty good in my opinion and I feel like a lot of people will still be playing 360 Reach since it’s backwards compatible and it has the credits system and your previous armor unlocks and progress as I am still trucking towards Inheritor and I don’t want to start that over). Question #1: will all armor unlocks be linked to Reach only? Question #2: Will the difficulty level of unlocking certain armor pieces be too high for casual player without that level of skill or that may drive them insane? Question #3: Will there be any new additions or removals of certain armor pieces like the Bungie flames or Eternal flames? I’m more of a casual player so I would love to be able to get the armor I want even if it takes a while (I have the flames from the legendary edition on Reach so seeing that become available to everyone will be a little painful but 343i and Microsoft have already made everything that was special in the other halo games’ customization available to everyone so it doesn’t matter anymore I guess (even though that will make it so that there is nothing special in Reach customization).

All the info that we’ve announced is in the MCC PC section pinned by Viper.