I would more like to see the 'same' idea.. but then with 2 people per B-17. One pilot and one guy gunning (using the guns like you can now).
The other ones can take a B-17 as well, so you have more like a flight of 2 or 3 B-17s and everyone will have enough to do

. To have a player per gunner could get quite boring.
If the game was more popular online, it could be great. But now there wont be many enemy bf109s because there wont be many players. So the gunners wont have a lot to do. 1 gunner will be enough.
But, for a sequel it could prove to be good

, just give the players a choice if they want to gun, wich gun, and/or maybe take an extra B-17.
ow, and of course, the friendly P-51s need to be flyable, not like the are now