Arenas:
WWI (1916-1918)
Spanish Civil War/Soviet Japanese War of 1939 (1937-1939)
Pre U.S. WWII (1939-1941)
Post U.S. WWII pt.1 (1942-1943)
Post U.S. WWII pt.2 (1944-1945)
The Korean Conflict (1950-1953)
A bold expansion that rivals other combat sims but with better flight dynamics.
WWI expansion: Axis and Allied fixed wing bombers(1 ea.), Zeppelins (German only), and Axis and Allied tanks (1 ea.).
Spanish Civil War expansion: BF-109 and I-16 SCW mods, 1939 Japanese fighter, Axis and Allied SCW bombers (1 ea.), 1939 Japanese bomber, Axis and Allied SCW tanks (1 ea.), 1939 Japanese tank.
Pre-U.S. WWII (Europe) expansion: French Dewoitine D.520, Battleship Bismarck.
Post U.S. WWII pt.1 (1942-1943) expansion: Shinano class aircraft carrier.
Post U.S. WWII pt.2 (1944-1945) expansion: Yamato class battleship.
The Korean Conflict (1950-1953): F-86 Sabre jet, MiG-15 jet.
18 new models, 2 model mods ... 37 years of dogfighting (and ships and tank stuff) war.
(Well, there was a day this mighta worked. Lots of work. Would take as long ... or longer ... as he graphic update, maybe. It'd be cool to see just one of the expansion segments develop. )