Actually, despite the obvious ironic/funny intention of this thread i'll go ahead and second the idea of a channel front add on.
Lot's of interesting air combat at a time where the ground front was more or less in a standstill. Jabo runs for the Luftwaffe and Rhubarb missions for the RAF, dashing to the other side of the channel under heavy clouds, bombing and strafing a few trucks or an airbase and hurrying back to base with the enemy scrambling to get you, good stuff