First Production:
I dont know how the AI decide what to produce but if they would be humans i would say the one responsible for production is not speaking with the genearl in the field what he needs.
It seems production follows scripted pattern and is killed by enemy bombing.
Germany is not producing tanks or planes because they are to low in production priority and too much industrie is damaged. It looks like this fires back because in this game Germany stopted trying to train Tank divisions because they are unable to produce enought of them, which led to a higher recrutment of inf divisions and a higher demand of inf equipment which prevented them from shifting more MIL IC to tank production.
A solution could be to distribute the factory damage evenly across the production lines so that the ai will continue producing a bit of everything.
Lets say 30% damaged IC will reduce the Inf Equpment production to 10 IC per Line but they would still produce Medium tanks with 4 to 5 factories.
Its even maore acurate to distribute the damage because nowone in WWII could decide which factories of them would be get hit and it is to easy to have excess factories you dont mind to get bombend and your tank production is uninterrupted.
Secound:
The AI seems unable to calculate relative power or the effects of terrain. They ignore mountains rivers everything and are still attacking if their tropps are clearly weaker.
This Battle is an hour old and i dont know why the ai even decides to attack there. They field a battle width of 34 and attack 240 width across a river??? In no situation ever should the do something like that! There is no situation or terrain where they are able to win these.and that goes along the whole front and leed to this
all defenses and there is a mannpower and equipment loss ratio of about one to ten. Some Battles are nearly 1/100.
Here are the losses summer 1941 and 1943 in the soviet german war. The most of them are from direct battle and just 100k-200k or so from encircelments.
Germany lost 1.95M aganst 200k of mine the German AI is simply killing itself. here is the 1/10 ratio of the stupid attaks again.
Its also a lack of good attackinf divisions because the production ai just throws out rifels which are good to defend but no tanks for a proper attack.
i refused to attack much because i also just started to pruduce tanks and was just not redy in 1941 for a large offensive witch happend in 1943
To improve this the AI have to learn the game, the map and some basics about war.
(It is getting a little weird now because i start talk to the ai, its late and im tired so dont wonder)
Stop attacking into mountains and across rivers if there are alternatievs. You just have to cross the river or a montainridge at one point an can use this as brigehead if you have no other way. Dont try to cross i everywhere at the same time! You can start some (clearly not all) attacks to see if you can breack throught somwhere, but if you have achieved it stop the other ones and reinfore the bridgehead and breack out of it.
Woods, hills, urban areas are ok to attack; jungle and swap is also ok, but avoid to stay at them to long if possible. If you get a chance attack at Plains. Calculate your relative power acordingly and just attack if you are strong enought to win. Try to attack with divisions which have a high breakthrough value.
Third:
You have to learn how to wage a war.
Therefor you have to split up your forces (yes dont use one single large battleplan for the whole front because that is unable to adress the geography). Use small battleplans at the right areas of the map. If you want to attack somewhere you have to concentrate your forces first.
To the map.
Divide the map into blocking areas (red), areas you should avoid and key areas you should take at every cost because they will win you the war (dont know if it is possible to get the AI to this from a codeing point of vwie but i will just continue as if it is possible). Lets see how this looks like for ...hm... lets take poland.
You can see that the green areas leed to large junks of land that is hard to defend/easy to attack. You have to hold them if you want to defend yourself very easy or attack into enemy territory. Toget those use as much men and equopment as you need but dont wast it at the red areas if you can avoid it. Keep in mind thet bunkers can change these areas significantly.
Lets see waht you have done last time:
A large scale offensive at the whole front with sucess in the south (A) where i retreated and you advanced to Odessa (B). But you ignored the bottleneck (green) because romania is still netreal and so is was able to pocked some of your troops with my counterattack [1].
Some Yeras later the same thing. Just throwing men across rivers at the whole front in a deperate move to gain the initiative.
Do you remeber how i got all these land from you? With the map. From one green point to the next, take some lossen at the green points and gain a lot of land very easy.
That is how you should attack, not like your last attemt above. I used my six tank divisions for every single offensive. When have you last time concentrated the best divisions at a small front where you are going to attack? And yes i konw you are curently not able to do this with the battle planer.
The battle planer should also take respect of the red areas. A lot of this moves [3, 4, 8, 9] where unable with the battleplaner because it will always attack across the riversat the sides, even with the spearhead. So the battle planer could need some tweak too in my eyes (offer more control where your troops are moving and where not).
If im at the battle planer, the fallback line could also need improvement to actuall be able to fall back (fighting) till you reach this line and not just move to it.