In 16 we accumulated Team related diamond cards by completing Conquest and then doing some discovered stat and consumption mission.
17-19 basically had the Affinity program under a different name each year but with a different name. For the life of me I can't remember if the Affinity programs were in the game at pre-order launch, regular launch, or at some point thereafter. For some reason I am thinking that in at least one of these years we had to wait a week or so.
Anyone with a better memory want to help me out here?