Silent Hunter 3

Silent Hunter 3 cheat codes: 
You have the needed amount of renown to get the upgrades to your sub
or to change your U-boat model use the following procedure:
You have to be in the base after a mission for this cheat to work.
Note: This procedure involves editing a game file; create a backup
copy of the file before proceeding. Enter the "\sh3\data\cfg\careers\" folder.
Select the name of the folder that is the same as the career that you
are using. Use a text editor to edit the file Patrols_0.cfg.
Scroll down to your last mission details and change the amount
of DeltaRenown that you got paid. example
(DeltaRenown=498.750000 Change to DeltaRenown=6500.750000)
Save the file and start the game. You can now buy what you like in the game.