Yeah it may sound stupid but I have no idea hw to unlock them. The ones I really want to unlock are the 0083 Stardust missions (my fav show). My friendship with both Gato and kou is 5 and yet nothing. Am I missing something?
Actually the Zeta and Unicorn sets unlock after you beat for Victory and for Peace. 0079 unlocks earlier, Turn A needs a maxed lab, anything else just keep doing the history missions and you'll get them eventually.