My friend (who I play destiny with regularly) seems to get an exotic engram every time he wins a game, whether he has a 3 of coins or not. However, every time I win a game of rumble or FFA, I get literally jack, I'll get a singular mote of light in the rewards. I've never had an exotic engram from crucible. Is this something with the oh holy lord RNGesus not liking me or is it possibly because I haven't yet completed the taken king story? Thanks!