Well, when i play the long campaign with any country, in some battles the cost of AI units is the half.
No every battle, only some ones of them.
I looked for the reason for that. And i found that when the IA buy first place "general support artillery" (50% cost) EVERY unit (infantry or armour) it buys after that costs the half too!!!
So the IA buys a lot of cheaper and deploy the double of units.
Anybody did notice this too? Great bug maybe?
I am 100% secure this is true. I have seen it, one and another time...
Sorry for my poor english...