I've been playing this game since release and I developed my own standard army composition that I strife towards as the game progresses. I ussually want an all round force if I ever need to fast deploy them somewhere else. I also have a few questions, which I'll put at the bottom of the post.
I try to outfit my armies as followed:
3 corps, 9 elements (2 inf divs + 2 medium art each)
2 individual cav div (not in a corps)
2 H art
1 pioneer, engineer, field hospital, signal, recon planes, zeppelin
I only add 2 SH arty to a second army when I need it
As my techs go up and storm troopers become available I ussually add 1 or 2 to the army, same for fighters. Once tanks become available I tend to take out 1 cav and replace it with a tank battallion, depending on how many CPs I have available.
I'm curious how others outfit their armies and the general strategies behind them. I want to try different variations and see what I like best.
When it comes to artillery; do field guns have a special purpose other than being cheaper and faster to build as opposed to medium artillery?
Do the modifiers of the support units stack? for example, is there any point in having 3 field hospitals in one army?
Is there a difference between air units inside an army and air units inside an airfield? Other than the boni of said units of course.
Is it a good idea to have res div inside an army but not in a corps? Or should I strife to replace them with inf divisions?