From what I have seen from beta doing squad missions only allows 3 person squads while multiplayer allows 6 person squads. I suggest being able to make a 6 person squadron in orbit with 2 sub squads that you can switch to so that you are still able to join your teammates at the beginning of a mission but get separated from the other 3 person squad when you hit the limited respawn point. You would still be able to talk to your squadron but unable to fight with them after this point, the reason for this change is to give the option to play PvP matches seamlessly after completing a mission instead of unjoining and rejoining larger squads in order to play missions which is an unnecessary waste of time.