New Rewards System: the Vault
Note: This idea stemmed off of Scott Jund's recent video (The Requirement for ANY Matchmaking System to Work) and Trickster Shadow's doc (How to Fix DBD), I 100% encourage you to go check them out.
With the MMR system coming into DBD, I want to go ahead and toss my two cents in with a new rewards system that will be rewarding to players preforming well called the Vault. The vault functions as sort of an endgame cosmetic-based reward system where players can use a special currency, earned by their mmr and preformance, to purchase different cosmetics only exclusive to them via their rank with mmr and amount of currency they have. For example, say that there is a silver player and a diamond player. Since the diamond player has the higher ranking, they will be rewarded more currency and a larger variety of cosmetics to purchase, while the silver player has less currency and a lesser variety of cosmetics. This system will allow for a wider variety of cosmetics, and a bigger incentive to climb the mmr rankings
edit: forgot to mention, feel free to share your thoughts or even throw in ideas