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Splinter Cell: Chaos Theory Hints
Can I get the keycode to the locked upstairs office?
1 of 6: See if there's anyone nearby who knows it.
2 of 6: It's okay if you've already knocked out the upstairs guard -- there's someone in a nearby room who knows the code.
3 of 6: Find the only unlocked door on the upper floor and open it stealthily (after using thermal vision to make sure the guy inside isn't up and walking around).
4 of 6: Sneak up next to him as he's sleeping on the bed so you can grab and interrogate him.
5 of 6: NOTE: If you got upstairs by going outside and getting up through a bedroom window, this is the room you end up in.
6 of 6: As the guy will tell you, the door code is 3650.