The idea is simple; missions lobbies below the player rank will be visible and freely joinable. Since there is no real restriction upon higher ranking players to join lower ranking lobbies already, but the only real issue is a general lack of visibility, it will make missions for lower ranking or newer players feel a little less lonely, and will make it a little more convenient for veteran players to grind tokens for lower-than-vanaduke bosses, such as Snarbolax, Raormulus, and Jelly Queen, or simply to hop in and interact with newer or actively grinding players.