You want to make campaign and you ask for elementary things?
In my opinion you should make single mission first. Scenario with CVN group is not simple to create. Placing ship in formation is not enough - you should make some triggers and scripts because big formations and ships with helos/aircrafts may causes many troubles.
I recomend using triggers for simulation fighters launching (via create group trigger)
I can halp you with scenario but campaign is too complicated for me
