Should put a Matchmaking queue system in the menu, so you can join a queue for hard missions, Strikes, PvP and raids, that whole looking for guardian system is lacking, boring and is not that reliable. Try making a menu so you browse what other people are needing people for, make it so you can choose the person's light level, so they can get the properly geared people, and a request system so you can choose the people you want and the people you don't want.