[Bwf.]

Go to Missions4Today,

http://mission4today.com/index.php?name=Downloads&c=1

and DL these campaigns(campaigns-offline) for a start.

Compans:
With No.32 Sqn In France
Kanalkampf - With No.32 Sqn - July 1940
Adlerangriff - With No.32 Sqn - August-September 1940
Under the White Rose-With 609 Sqn 1940-41

Cobra427so:
Battle of Britain - Hurricane Season

FlatSpinMan:
RAF Pilot: France

As for a BoB map, the only one we have now is fly_zo's Normandy-BOB
map, there are other BoF/BoB maps being worked on but not yet released.
Good Luck with the above mentioned campaigns, they're very good.