Unlimited prestige points:
 --------------------------
 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%. 
 
 Gametip:
 --------
 When the menu comes up, select play by e-mail mode. 
 Save the game and load it. You can then play as both 
 sides.