Oh, the reason I ask about spawing in mid air is I have to figure out how to get all of the enemy aircraft into one large formation by the time the player (playing the allied side) intercepts them. I will figure it out.
You could simply have the players flight stay on the runway, or in the briefing room for a minute or two to give the bomber horde a chance to assemble.
and here's the most common bugs to look out for, and try to build around:
1."Ghost" planes, an invisible plane will fire on the player's (and others) aircrafts.
2.Sometimes WHOLE FLIGHTS never spawn.
3.When certain flights enter the pilot's veiw range, the game crashes.
or atleast thats all i can remember for now. If you have any more questions you can PM me, (or if you want more knowledgable help) Stalwart, USranger, soda, and most of the other regulars on the offline forums.
EDIT:Ooops! looks like your not as new to this offline bussiness I thought, you probably already knew all this! let me know if im coddeling you a litte bit too much.