Tom Clancy's Splinter Cell Chaos Theory cheatsAdded 18 Apr 2005, ID #3559
Unlock all Levels: In the Profile Menu Enter: COOPA22COOL
Unlock Elite Mode in co-operative play: Successfully clear co-op story mode. Elite mode starts both spies off with no ammunition for the SC-20K or the SC pistol. You have to obtain and find the ammunition in the levels.