These hax will work for the Republic Commando pc single player.

Gode Mode:
Go to a folder located at: C:/Program Files/LucasArts/Star Wars Republic Commando/GameData/System

Once there, look for a file called "User"

Open that with a text editor.

Look for these lines:

DamageModifierMedium=1
DamageModifierEasy=0.25
DamageModifierHard=2.25

Change them to:

DamageModifierMedium=0
DamageModifierEasy=0.0
DamageModifierHard=0.0

Every time you go into a single player game you will be in god mode! I'm not sure about multi-player and I will NOT test it cause multi-player games should be hacker free.

I don't think anyone cares about hacking =3