I can personally say that you sir/lady are correct I did a strike 2 man and a guy joins as we kill the boss we both had 100+ kills he had 0 and he got a legendary engram ....but here's the kicker I stay in the Playlist and I get put in the same situation as the other guy I get into the game get 5 kills and boom after match rewards ? That's right legendary engram.....in short...this games loot system is super broken.