Tom Clancy's Splinter Cell Chaos Theory

When you see Otomo try to commit suicide, Lambert will radio you and say something. If playing on the normal difficulty setting he will say something similar to "Otomo just tried to commit sepuku. Get in there and revive him". However, if you play the game on the hard difficulty setting, Sam will say something similar to "Looks like someone feels a bit too good about himself." However, all the objectives will remain the same.

At the end of the level, Shetland and Sam will be on top of a roof with their guns pointed at each other. After a short conversation, Shetland will put his gun away and say "You wouldn't shoot an old friend". You are given a choice, shoot or put your gun away. If you shoot, Shetland will stumble backwards and the intermission sequence for the level's ending will play. However if you put your gun away, Shetland will quickly pull his gun out and point it at Sam. Sam will duck his weapon and stab Shetland in the stomach before throwing him. This will then start the same ending sequence.

During the mission you will have to overhear some data being said on a radio transmission by a guard. If you fail to do this, you can just find the data in a filing cabinet next to the radio.

There are two guards talking about their new vehicle. During the conversation, one says that it has a 640 gig MP3 player, "standard." The other replies that no one will ever need 640 gigs. This is a jab at a comment made by Bill Gates back in 1981 about no one ever needing more than 640 K of RAM.

On the ground floor after you have knocked out two guards (the one who is repairing the elevator and the other one that is talking to him), put one or more of the guards in the elevator with Sam. Sam must turn on his night vision and press the button to go to the top floor. Watch the guard's body bounce around like popcorn.

Have your sniper zoomed-in on the guard. When there is a fight, shoot, run, and catch Shetland. Then, end the mission.

In the final area of the second part of the mission, you can rescue the injured pilots as a bonus objective. However, instead of waiting for the lamp to flicker on and off to get past the tank safely, there is an easier way. Make sure you have a frag greanade (obtained elsewhere in the level). Go to the very top of the scaffolding and take out the frag grenade. Aim the grenade to go in the hatch of the tank. If done correctly, the grenade will explode in the tank, which will destroy it.

Normally when you are on the last part of the Bank level and take the $50,000,000 from the cell, you will trigger the alarm when you walk out. There are three ways to avoid this. The first is to eliminate every guard in the bank. When the alarm goes off, no one will come because they are either dead or knocked out. The second way is useful if your trying to get a good rating without sounding alarms. When you take the money, do not walk out. Turn on your heat vision and you can see the laser. Then, turn on your goggles to where you can see the electronics. The laser should be on your left. Use the secondary fire on your pistol to disable it, then quickly run out of the cell. For the third way, make sure there are guards remaining and before you take the money, there is a computer terminal. Open the door and turn on the sprinklers. Wait for them to turn them off and the whole chamber and the path to get into the chamber will be wet all the way to the narrow hallway. Take the money and trigger the alarm. Take out your sticky shockers and wait for the group of men to stand in the puddle. Make sure you are not seen or the guards will run for cover. Then, shock them.

Successfully complete the game to unlock Elite mode, which starts the game with only the knife and unloaded guns.

Successfully complete Story Mode to unlock Elite Mode, where you only have a knife to use.