Taking a reference from Destiny’s design for example.
Coatings should not be from confined within two types of body armor like it is right now. It should not also just be the whole body but pieces of body parts. There are also so many unique color pallets they can use too besides darker or brighter shades, please. Besides colors, add a more diverse material design too. Don’t be afraid to make it real gritty to shiny.
I think coatings can move into the right direction if they were more creative with the choices they given us. Not everyone wants different types of black or grey combinations.