Planes have to operate from bases, so whenever they are used to attack or defend, they must always return to their base. When defending, they can defend any space up to their range. There are optional rules that decrease teh effectiveness of planes the further from their base they operate.
Ships work the same as planes.
Supply is like AA bulge and North Africa, but is required for planes and ships as well.
Combat is similar to classic AA, but there are differences in how planes work in combat to reflect their roles of fighter vs tac
Paratroopers have unique rules reflecting their actual roles.
Terrain is a big feature of the map
Movement is unique in that you complete 1 entire move (combat and interceptions and all) before you do the next one. This means you could attack a space and fail, and then attack it again all in the same turn. Or you could driveup supply to your units, and then use those units to attack.
Complexity would be ~ AA Bulge. There is a basic version using more classical rules in the works for that want to keep it simple and familiar.
