It's a good idea, except it WILL get gamed. Whats to stop some clown reloading a mission after mission to keep control and run it strait into another CV, shore battery, pt spawn, or a flight of buffs? It won't be changed unless you can find a way that it can't be "gamed" by some Ahole ..... basically the same Aholes that turn the CV as you launch.
Souls suggestion does work. In scenarios they call players by flight number to launch one at a time. You could use names but it works just the same. It's a bit more "work" for the mission leader (unless he delegates the job to a Launch officer"), but it can cut out the havoc created by some Ahole.

Appreciate your comments and respect you as an opponent in the air and in the game. My suggestion would have to be modified to allow only 1 mission to be posted in a 30 minute time span, in order to stop what you are suggesting. Some of us, you included, try to operate in the game as it was designed to be played, but you have the horse's rear's who have "shade" accounts for one purpose and that is to cause problems. Shade accounts have been and will always be a problem until Hi Tech decides to do something about that, such as what I just suggested in this thread!
I have tried everything I can think of, including posting 4 different missions, with only one type of aircraft each in the mission, with one minute differences in launch time, so as to avoid all launching together. I think from now on, since we have installed a voice system similar to "team speak", I will announce it on that, and tell when for each different aircraft to take off. The reason I have always posted missions in "country" via the text, so that other squads can take advantage and join in. But, with 1 and 1/2 years experience in Aces High, there are some major problems with this game which management needs to address.
Aces High has done a outstanding job of modelling and terrain detail and for 50 cents a day entertainment,, you can't beat it!!! I would just like to see some improvements in some of the problem area's. Being 78 years old, and flying since 1948, (retired in 2004), soon to be 79, don"t know how much longer the good Lord will allow me to play this great game.