Tom Clancy's Splinter Cell: Chaos Theory Cheats for Xbox

All co-op missions

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Surprise!

At the beginning of the last mission, Sam will encounter a metal door that is opened using the switch to your left. Before opening the door, look through the windows ahead of you. When the guards show open the door. They won't see you, but they should investigate. As they go back into the corridor, shoot them with your pistol for two easy kills.

Hidden vent

At the beginning of the last mission, you will encounter two guards in a large corridor. After taking these out (avoiding the camera to your right), make your way to the end of the corridor. At the end there should be a vent to your right. After crawling through the vent you should come across a set of stairs. Follow the path and climb the wall at the end. You should see a guard facing away from you and another guard mopping the floor. Take these out with your SC-20K and make your way to your next objective from here. This way helps because you skip several guards which means you save a bit of ammo.

100% rating

In order to get a 100% rating on any mission, you must complete the level with the following statistics. It is unknown at this time if there is a reward for getting a 100% rating on every mission.

Recommended equipment

The best equipment to have online in any level is the smoke grenade, sticky camera, optical camo, and alarm snare.

Alternate dialogue

If you trigger alarms, the guards will be more alert and wear helmets. When you have four alarms all secondary and opportunity objectives are cut, and the funny long dialogue is simplified. This is what happens when Otomo tries to commit seppuku. Fisher says "I think someone is taking himself a bit too seriously." Lambert then says "We can't afford to let him die, Fisher. Get in there and stabilize him. Fast!" The following occurs when you have four alarms. Lambert says "Otomo tried to commit seppuku. Get in there and stabilize him, fast." When you have four alarms in a level all the funny conversations are replaced by one person giving a monologue.

Penthouse: Ubisoft references

In the introduction sequence for the mission, when you see a blimp, you can also see a Ubisoft logo on it.

North Korea: Ronald Reagan

This game was developed at about the same time that Ronald Reagen died. In the missile battery stage, a missile is launched at the USS Ronald Reagen. Grim tells you this and Sam says "You want me to win one for the Gipper?"

North Korea: Half-Life

In the missile battery stage, at some point Sam asks Grim if he could use a crowbar to open the console in the battery. She says "That's for geeky scientists". This is a reference at the Half-Life games where you play as a scientist with a crowbar.

I-SDF Base: Metal Gear Solid

When you get to the lower floors in the I-SDF base, interrogate a guard. Sam will ask him about his LTL (less-than-lethal) weapon. The guard will tell Sam that the ammunition is some kind of electric round. Sam asks where he can find some. To this the guard replies: "It's not like you can shake me, and make my ammo drop on the floor". This is a reference to the Metal Gear Solid games, in which you can do just that.

I-SDF Base: Splinter Cell

You can overhear a couple of guards talking in the main hall. One will say something about how guarding the place is just like guarding the CIA HQ; nobody would break in there. This is a reference to the original Splinter Cell, in which you must break into CIA headquarters.

Elite mode

Complete the game in Co-Op Mission mode to unlock Elite mode, which starts the game with only the knife and unloaded guns.

Movie trailer

You have to finish the Lighthouse mission in Solo mode.

Elite difficulty

You have to finish Story mode.