Battle Academy - Operation Sealion

It is September 1940, and the Germans launch their invasion of Britain. In this fictional "What If?" Campaign, you command the Home Guard's desperate counterattacks against German glider troops and the tenacious defense of the South Coast Sea Front. Mount "Butcher and Bolt" missions with the clandestine Auxiliary Units or land coastal raiders from Motor Gun Boats. Can you hold back the might of Operation Sealion?