For orders, you can be as vague or specific as you like, I will require a set of standing orders for situations like being attacked and such, but for other things you can either submit a detailed list of tasks and the order in which you'd like them accomplished, or just a few general goals and leave the specifics up to me, similarly with ship design.
For the beginning, I intend to run the turns until something interesting happens or say 2 years go by, as you guys start expanding then that timeframe will collapse a bit. I will always leave the option to end the turn early if something comes up that isn't covered by standing orders.