may be can create story map from 1914 - 1945.
9. In supre 1914, Most player which i meet, they group army together (1k-3k unit), they coming attack. only 1 strategic.
In call of war. If enemy group together, then can "Nucklear it"
For air, can use strategic bomber, heavy bomber to attack. even with carrier airplane. For land, can choose many type of vehicle or infantry. if your enemy focus on tank, you build lot of infantry, then you are trouble. however, if you have lot of Anti tank. then your enemy will face trouble. Something like restrain each type of army.
With restrain each type of army - if you can win on battle, you will get advantage, however in supreme 1914. with group large army together, the small country even win, will loss a lot of army. However the big country still can benefit from large economy and free infantry to further attack.
In supre 1914, 200 land country is hard to fight 400 land country. , the expansion is not useful. mostly all land can get 100 morale.
In call of war, Expansion penalty is high + distance capital. average mostly can get 80% morale or even lower.
But supre is good one thing. not so fast at call of war. Call of war when you slept, everything is change.