It’s been a while since I played the TripleA AI, so I’m not sure what strategies it’s using to beat you (I’ll assume a fairly traditional KGF…)
Don’t be too concerned if you’re behind in TUV. I’ve won a ton of games as the Axis where I was behind in TUV right up until I took Moscow. Position is more important. If you’ve managed to equalize the production, that generally means you’re doing well even if your TUV is behind.
A few miscellaneous thoughts:
—Use the battle calculator often to make sure that Allied attacks on Germany, Western Europe, etc aren’t likely to win.
—Get mostly inf with Germany. Assuming the computer does indeed go KGF, Germany will ultimately be on the defensive. You may play a fairly aggressive defense, pushing against Russia, but you won’t be able to actually take out Russia with Germany alone in KGF.
—Try to keep most of your units in stacks where they’re hard to kill. On the eastern front, you have two basic options: Stack Karelia, or stack Eastern Europe. The former is more aggressive and will increase your income, but the latter is safer. I generally stack Kar when I can and Eeu when I must. Use inf and fighters to trade border territories with Russia. You have a bigger air force, so you should have an advantage in the attrition war.
—Don’t spend any money on German navy. Some people like a carrier on G1, or an extra tran in the Med, but try going without any naval purchases. Don’t spend much on air either (ideally, none).
—With Japan, I usually prefer to build the first factory in FIC rather than Man. It’s closer to the front line (3 spaces from Cau) and better positioned to get you into Africa if needed or to participate in the Pacific if needed. You should eventually get up to 5-6 tran and 2 mainland factories with Japan; it’s generally pretty easy to get your income in the mid to high 40’s and then you can be pumping 12-14 ground units into Asia each turn. Russia can’t hold up against that for very long.
—It’s worth experimenting with ways to get the Japanese navy into the Atlantic (again, assuming KGF) in order to disrupt the Allied supply lines and ease the pressure on Germany. One way is to go through the Suez, which requires some teamwork since Germany must open the canal for Japan to go through. Another way is to send part of your fleet west around Africa and part east around South America.