I have a simple solution to 4* cover progression.
first of all taking out the option to simply buy up the covers for a new character and max them out within a week of release has been really refreshing, thank you for taking out that huge pay to win exploit. but there is still a major problem of the rich keep getting richer.
the best way to keep getting 4* covers is to win the pvp events. the best way to win the pvp events is to have a strong 4* roster. the snake that eats it’s own tail. so what if, just once a week, nothing drastic, the DDQ final mission reward was a 4*?
you can even make it something like the sunday ddq reward ONLY IF you have completed all DDQ final missions for the week. awarding one 4* a week to people who play every day is not game breaking. if I am way off base please let me know. i’m always open to constructive criticism. thanks.