Matchmaking for Legend NF - god yes, Bungie pls Master NF - I could see it, once you are at or near level its not overly difficult GMs - this is heavily dependant on what the GM in question is. Arms Dealer could probably be cleared by a matchmade team fairly reliably, but something like Corrupted, Glassway or Proving Grounds actually really do require pretty heavy communication and strategizing. Trials - Bungie are looking into allowing matchmaking by the sounds of things, or at least a way for solo players to engage. Raids - LMAO if you want to utterly waste all of your time, go for it. I cannot see this working in any capacity, at all. Sorry.