This game is also available on PS2.
After getting 30 National Treasures
After getting 110 WMD Blueprints
completing the second Spades contract for that Mafia faction
After getting 20 WMD Blueprints
This code cannot be enabled all of China's Spade Contracts have been completed.
completing the second Spades contract for that SK faction
After getting 30 WMD Blueprints
After getting 40 National Treasures
After getting 110 National Treasures