Panzer General 2 Cheats

Select to play by email at main menu. Save the game,
then load it again. You can now play as both sides.
Strategy

Clear a city of enemy units and place one of your units within that city. Cancel the moving your units into the city to keep the prestige points earned. Repeat this procedure to gain an unlimited amount of prestige points. Note: This will only occur if the difficulty is over 100%.

Open a savegame of a campaign game with a hex editor. If you save in first scene of germany's campaign (Almadrones) without doing anything, the line 000002d80 has an offset "f401". That's the prestige. Change is to whatever you like (DAD6 will do) and save it. Restart the game and load the savegame. You can refresh your prestige at any time. The location never changes. But: mass isnt everything - try to get experienced units all the same.