I think it would be great to have a 'matchmaking' option to play with random people in your fireteam for all missions. Not just those like Devil's Lair. Thoughts?
So long as it is 100% optional and provides a choice to never matchmake (strikes and other mandatory matchmaking aside). Running Devils Lair quite a few times, more often than not someone just afk'd at the start. I'd rather run any mission solo than carry someone through it.