Basically, how this is going to work is that we're going to start just before everyone receives word to go to Pax for this joint team. For my character, I intend to have an introductory post for her to kind of give an idea of who she is and what she does, then she will receive her new orders from her superiors. If you want, you can all do the same thing, or you can just have the first post with them receiving their new orders/job/whatever. If any of you want to have characters that already know each other, you can set that up at the start. Or not. Your choice.