Matchmaking in the Raid is not a good idea. Take a look at the strike playlists. Look at how many people AFK during them to get the rewards without doing anything. Apply that now to the raids. What would it be like if the guy that was AFK'ing got teleported or was the last one that needed to get across the bridge? You can't boot him, even if you are the fireteam leader. Now think about how many ways there are to cause a wipe, and how many people would intentionally cause one just to troll the remaining members of the team. Remember, they can't be booted. So that guy that keeps on getting caught by the Gorgons and then laughing about it as you all call him asshole, gets to keep doing it until you all leave the game. Now let's talk about enabling the fireteam leader's ability to boot people. What's to stop the power hungry asshats from kicking the fireteam just as Crota or Atheon are about to die? I understand the frustration with having to post and hunt for fireteams to complete these 6 man missions. Believe me, if any one understands it's me. I have a lot of people on my friends list now from looking for teams, because my actual friends don't start playing until really late. Opening the raids up for matchmaking will not function the way that you want them to. Particularly when the trolls and AFK'ers find you.