I think it's a great idea, however, not sure about Bishop or Rooks, but on the knights we post missions all the time that are squad only  and seldom does anyone other then a squad member join.   I seem to recall that with Knights and Missions, you have to beg people to join a public mission.  What I'd like to see is the old mission planing tool brought back.  You could stager take off times and assign different routes to each flight .  But HiTech has stated that he will never bring back that tool.