Complete the following achievements to unlock Xbox Live Gamerscore points.
Additionally, there are twelve secret achievements.
 Win six games as a Spy, six games as a UPSILON Force member, and play a total of 25 games.
Complete the indicated task during the final mission to see the corresponding ending after the bomb is disarmed.
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Complete the following special objectives in single player mode to unlock the corresponding item.
Reach the indicated rank to unlock the corresponding skin:
In multi-player mode, select either Xbox Live or SystemLink. Go to Co-op Challenges, and select "CodeName: Onyx".Choose Mission 03. If you chose Xbox Live, make sure this is aprivate game so that you can host your own room. Press Xto start the game. Go through the double doorway to the rightof the gadget stock, then turn right at the stairs and walk up.On the wall will be a sign. Turn and go up the stairsonce more and enter the room with the number 2 on the wall tothe left of it. Once in the room, turn right to the first openwindow. Run all the way to the end of the walkway and jump tothe landing directly in front of you. Climb up the ladder, stop,turn right until the camera is facing the building you just camefrom. Look up to see a huge billboard. Click the Right Analog-stick to view it from your goggles. D-pad Upzooms in, while D-pad Down zooms out.
When you have a choice to shoot Lambert, aim for hishead, eye, mouth, nose, or anywhere else above his shoulders.Somehow when he hits the ground he can still manage to talk.
Make sure you have a flash and a frag grenade and fulllife. There are a lifebox near the door outside of Emile on theright wall. Go outside to Emile and an intermission sequence begins.When it is done, on your left may be a laser beam. Wait for itto go off. When the laser goes off and Emile is done shooting(he will begin again), roll to the next chair or bench. Wait untilhe is finished shooting again. Continue doing this and go up forthe fence/rail. Jump onto it. Go down from it and you now musttake Emile out. Walk away for one or two seconds, and make sureyou can drop the flash grenade near Emile. Shortly after it isdropped, put your frag grenade in the same place. Emile will notsee you drop it and will be defeated. Then, read the computerand defuse the bomb. Note: Take your time.
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.
Successfully complete Solo mode.