Tip 1:
Never run units, especially infantry, far ahead of the main group. The computer player is very skilled at surrounding and destroying isolated units.

Tip 2:
Resist the urge to use the replacement button to repair units during battles unless you absolutely have to, as this will reduce valuable experience. If you can, retreat a badly damaged, high-experience unit to the rear to wait out the end of the battle.

Tip 3:
The Chinese tank destroyer units can be deadly even to the best Allied armor. Use the stealth tank's range advantage to pound them from the safety of three hexes' distance.