xbox360-Tom Clancy's Splinter Cell: Double Agent

All Multiplayer maps
Win six games as a Spy, six games as a UPSILON Force member, and play a total of 25 games to unlock all Multiplayer maps.

Bonus multiplayer skins
Successfully complete the indicated task in Multiplayer mode to unlock the corresponding skin:

Spy (second skin): Achieve the "Recruit" rank (with a general average higher that 1%)
Spy (third skin): Achieve the "Special Agent" rank (with a general average higher than 45%)
Uspilon Forces (second skin): Achieve the "Field Agent" rank (with a general average higher than 20%)
Uspilon Forces (third skin): Achieve the "Commander" rank (with a general average higher than 95%)

Bonus equipment
Successfully complete the indicated special objectives in Solo mode to unlock the corresponding item:

Electric Lock Pick: Primary objectives in JBA HQ 1
EMP Device - Enhanced: Primary objectives in JBA HQ 1
EMP Grenade: Secondary objectives in the Iceland Assignment
EMP Grenade - Attachment: Secondary objectives in the Cozumel Assignment
Explosive Sticky Camera-Attachment: Secondary objectives in the Iceland Assignment
Frag Grenade - Attachment: Primary objectives in JBA HQ 3
Gas Grenade: Primary objectives in JBA HQ 1
Gas Grenade - Attachment: Secondary objectives in the Cozumel Assignment
Hacking Device - Force Hack Upgrade: Primary objectives in JBA HQ 2
Hacking Device - Software Upgrade: Secondary objectives in the Shanghai Assignment
Night Vision - Enhanced: Primary objectives in JBA HQ 3
Shotgun Shell - Attachment: Secondary objectives in the Okhotsk Assignment
Smoke Grenade - Attachment: Secondary objectives in the Shanghai Assignment
Sonic Grenade - Attachment: Primary objectives in JBA HQ 2
Ultrasonic Emitter: Secondary objectives in the Ellsworth Assignment
Wall Mine - Flash: Secondary objectives in the Okhotsk Assignment
Wall Mine - Stun: Secondary objectives in the Ellsworth Assignment

Elite mode
Successfully complete Solo mode on any difficulty setting to unlock the Elite difficulty setting.

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.

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.

Bomb defusing in Okhotsk, Russia Part 2
In Mission 6: Okhotsk, Russia Part 2, after talking with the Captain he will reveal that he has rigged the bombs to go off. Emile Dufraisne will tell you that they are in the machine room. Look for a crawl space near you. Go through it and down the ladder. Once you are in the machine room, disrupt the light near to the ladder with your OPC and the camera that you will find nearby. Then, go to the first bomb (you will recognize them by a green light) on the same level as you are on. You can defuse them by cutting the wires in a particular order. The wire you have selected for cutting will be highlighted in green. You will know which wire to cut by a short vibration from the controller. When you select the wire the Captain will say that you now have three minutes. The rest of the bombs are located in the machine towers (two of them) and one is upstairs roughly opposite of the first bomb. Note: There are three guards in the room. It is recommended to quick save the game before attempting to defuse your first bomb so that you have an idea of how it is done.

Disposing Hisham's body
If you are going to kill Hisham, wait until he is down in the parking space. Kill him and pick up his body. Walk to the back of the red car and put him in the back. Press Place Charge and stand back. Detonate it and the "Opportunity Objective complete - Dispose of Hisham's body" will appear.

Defeating Emile
Make sure you have a flash and frag grenade and full life. There is a lifebox near the door outside of where Emile is on the right wall. Go outside to Emile and an intermission sequence will begin. Once it has finished, on your left may be a laser beam. Wait for it to go off. When the laser goes off and Emile is done shooting (he will begin again), roll to the next chair or bench. Wait until he is finished shooting again. Continue doing this and go up for the fence/rail. Jump onto it. Go down from it and then take Emile out. Walk away for one or two seconds, and make sure you can drop the flash grenade near Emile. Shortly after it is dropped, put your frag grenade in the same place. Emile will not see you drop it and will be defeated. Then, read the computer and defuse the bomb. Note: Take your time.

Comcast message
In Multiplayer mode, select either Xbox Live or System Link. Go to Co-Op Challenges, select "CodeName: Onyx", then Choose Mission 03. If you chose Xbox Live, make sure this is a private game so that you can host your own room. Press X to start the game. Go through the double doorway to the right of the gadget stock, then turn right at the stairs and walk up. On the wall will be a Comcast sign. Turn and go up the stairs once more and enter the room with the number "2" on the wall to the left of it. Once in the room, turn right to the first open window. Go all the way to the end of the walkway and jump to the landing directly in front of you. Climb up the ladder, stop, turn right until the camera is facing the building you just came from. Look up to see a huge Comcast billboard. Click the Right Analog-stick to view it from your goggles. D-pad Up zooms in, while D-pad Down zooms out.

Strange corpse in Shanghai Hotel
When you are trying to get to the safe in the meeting, after you pass the room with the man in the bathroom, hide behind the bar. Wait for someone to come through the door and sit down in the chair. Take aim and shoot him in the face. The body should glitch. His knees should be in the floor, and he will be standing perfectly straight but inside the chair.

Achievements
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Training Completed (10 points): In Solo mode, successfully complete a training course.
Teacher's Pet (40 points): In Solo mode, successfully complete both training courses.
Hero (20 points): In Solo mode, complete the game with the best ending.
The Invisible Man (20 points): In Solo mode, complete a mission without being detected.
Getting Technical (20 points): In Solo mode, knock out 5 enemies using non-lethal gadgets.
The Collector (20 points): In Solo mode, collect all gadgets and upgrades.
The Human Light Switch (20 points): In Solo mode, use your EMP Pistol to turn off 20 light sources.
Professional Ninja (40 points): Complete Solo mode on Hard difficulty.
Agent of the Month (20 points): Complete the profiles of all the major members of the JBA.
Recruit (10 points): Obtain an overall characteristics average of over 1%.
Operative (15 points): Obtain an overall characteristics average of over 5%.
Field Agent (20 points): Obtain an overall characteristics average of over 20%.
Special Agent (25 points): Obtain an overall characteristics average of over 45%.
Officer (30 points): Obtain an overall characteristics average of over 75%.
Commander (45 points): Obtain an overall characteristics average of over 95%.
Bronze Trophy (15 points): Complete all the challenges by obtaining at least the bronze medal.
Silver Trophy (30 points): Complete all the challenges by obtaining at least the silver medal.
Gold Trophy (50 points): Complete all the challenges by obtaining at least the gold medal.
Blackwing Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map..
Motorway 90 Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
Terminus Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
Slaughter House Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
Red Diamond Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
Boss House Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
Dawn Waves Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
USS Wisdom Expert (20 points): Get at least 10 victories as a spy and 10 in the Upsilon Force and play 25 sessions in this map.
Additionally, there are twelve secret achievements:

Ellsworth Assignment Completed (30 points): In Solo mode, completed the Ellsworth Penitentiary assignment.
Iceland Assignment Completed (30 points): In Solo mode, completed the Iceland assignment.
HQ 1 Assignment Completed (30 points): In Solo mode, completed the first terrorist HQ assignment.
Okhotsk Assignment Completed (30 points): In Solo mode, completed the Sea of Okhotsk assignment.
Shanghai Assignment Completed (30 points): In Solo mode, completed the Shanghai assignment.
HQ 2 Assignment Completed (30 points): In Solo mode, completed the second terrorist HQ assignment.
Cozumel Assignment Completed (30 points): In Solo mode, completed the Cozumel assignment.
HQ 3 Assignment Completed (30 points): In Solo mode, completed the third terrorist HQ assignment.
Kinshasa Assignment Completed (30 points): In Solo mode, completed the Kinshasa assignment.
Save Hisham (10 points): In Solo mode, saved Hisham's life.
Save Lambert (10 points): In Solo mode, saved Lambert's life.
Defeated the JBA (100 points): In Solo mode, completed the main storyline.