Don't quote me but this is my understanding of TOD.
You get two possible 'players' or characters. This will be very historical so I assume only two sides so 1 characteer per side.
You do have to go thru pilot training to be active, 99.9% of the regulars should have no trouble completing this. Once your flying, possibly also driving, you move up in rank and get judged on mission results, not necessarily how many kills, etc. that you get. You break off from the mission and freelance, a penalty will be payed. Penalty as in not a successful mission and no medals, promotions, etc. not a loose your perks penalty. This character will have one life and if you die you will have to go through Training again and start over. It will be all mission based and they will start at certain times, as an example say every 1, 1.5 or 2 hours. The game will use AI pilots to fill all mission slots if they are not all filled by humans. These missions will not be player made but host generated I believe.