While I agree with the points you have made, The only thing I would say is not to have armour specific perks. That forces people to look a certain way and everyone ends up looking the same.. Instead I would have mods that are rewarded during activity. So after a checkpoint in the raid you would have a chance at getting a raid specific mod, Same with Trials and same with Strikes. That way people can look as crazy and funky as they like while still having perks that are relevant to the activity they are playing. I also miss weapon specific perks like faster reload with a hand cannon but I digress.