Tom Clancy's Splinter Cell Double Agent (PlayStation 2)
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Alternate endings
Successfully complete the following tasks to get the corresponding ending:
Ending A - Good: Have your NSA trust above 33% and save at least two of the three targets (Crouse Ship, Hisham, Lambert).
Ending B - Normal: Have your NSA trust below 33% and save all three targets (Crouse Ship, Hisham, Lambert). Alternately, have your NSA trust above 33% and destroy two of the three targets.
Ending C - Bad: Destroy all three targets (Crouse Ship, Hisham, Lambert). Alternately, have your NSA trust below 33% and destroy two of the three targets.
Elite mode
Successfully complete Solo mode on any difficulty setting to unlock the Elite difficulty setting.
Getting back to cell in Ellsworth Penitentiary
When you sneak out of your cell by crawling under the bed and getting the walkie-talkie, you must get back within the time limit. When you are up on the grating, instead of taking the pipe down drop off. You will knock out a guard. Then, go back to your cell and act normal. The grating is the only way down.
Hint
Try not to shoot with your gun. Always sneak pass then or knock them out. But if your in a bad sitution just shoot him like no tomorrow.
Quickly Kill Emile
If fighting Emile is to hard for you. just throw a flash bomb at him, and while he is stunned, hit him with a Frag grenade. Simple as that.