You see this throughout crucible unfortunately. Played an elimination match a while back where we were up 4 nothing. Miraculously one of the other players got a bad connection and wouldn't take damage. each time we would take out his teammates and he would wipe all three of us as we all shot him. The guy then had the gull to message me talking trash. I reported him but I am sure nothing happened. Until Bungie starts enforcing harsh penalties for cheaters it will continue. Until a few people start getting permanent bans then they have no reason to stop.