The scale is about 2:1.
It takes an 18 degree chunk of the planet and squeezes it into the largest map possible.
It won't really be usable untill the planeset is expanded to use this terrain and carrier fleets are available. Missing are Japanese fighters like the Ki-43 (Oscar), variants of the A6M Zero and an attack fighter like the Ki-84 or Ki-61, (Tony?). There is also a lack of Japanese dive bombers and level bombers like the Val, Kate, Betty and the twin engined attack fighter who name I can never remember =)
The Allied planeset would need to expand to include Curtis P-40's, an early P-38, F4F, F6F, B25 (several variants), and an earlier war variant of the B17. Spitfires were available later in the war but used mostly in Burma and Malaya.
Spotcha in the Air