Fighter sweeps

[m10bob]

No, it could be done within a mod..Just take as many aircraft slots as types of planes you would want to give speacial traits to.
I.E.: If you want a few squadrons of purpose-designed B 25 "Para-frag" bombers, just use one slot for a special B 25, give it a limited ceiling of 1000-2000 feet, arm it with a special type of HE bomb, and you have your para fraggers.
The engine has nothing to do with it. It's just how the plane is armed, and the flying traits given.
Can't use it too often or morale goes to pieces.(They can regain morale by flying ASW missions at that altitude).