The Official Monster Hunter 3 Ultimate Topic

Do you know whether or not it's still possible for people to join others who are already departed on a quest? I vaguely remember in Tri that you could join already active quests, even if you weren't there to sign up for it when it was started. Is that still possible in 3U?

I don't remember that ever being possible, to be honest.

I know you can join lobbies even though people are on runs, but not the actual run.