It's been bugging me for a while now; the maps for Japan are getting very same-y; constant repeats of Pelieu, Saipan, Kankhalin Gol, and occasionally Iwo Jima, which are a big hassle for pilots who mainline certain Japanese aircraft, in particular level bombers like the Ki-49's.
In fact, it occurs to me that there are two entire theatres of war that have been ignored in both the game, and in real history too; specifically, the Malaya Campaign, from those first few months where Japan overran everywhere from Hong Kong to Singapore; and the drawn out Burma Campaign that lasted from early 1942 right up to VJ-Day.
Malaya Campaign Map, December 1941 - January 1942
Map of opening stages of Burma Campaign, 1942
It would certainly be a nice change, and shed some light in a mostly forgotten theatre of the war.
Image Credit: Courtesy of the United States Military Academy Department of History, sourced from http://www.emersonkent.com/