Atmosphere Modeling and More Certain planes fly faster and better at certain altitudes. The Messerschmitt's supercharger isn't as good, attaining top speeds at only 13,000 feet. A fully loaded Spitfire Mk. IX behaves much differently than an unloaded one. The area between London and Berlin is geographically correct.
Key landmarks appear famous buildings, lakes, rivers, and roads.
Import and export scenery and aircraft from civilian Flight Simulator too. Campaigns The Battle of Britain and the Battle over Europe. Fly from the Axis or Allied side. Scoring system helps you win medals and promotions if you survive.