While you are completing the very first mission in the game, called Ghost Hideout, you are killed and will need to make use of a defibrillator to bring yourself back to the land of the living (this is all part of a tutorial). After this happens you move to the next part of the mission of take care of some enemies there.
In thispart there is a TV. What you need to do is stand on the right hand side of it which will also place you in a corner. When you are positioned there press the interact button and you will open a secret door to a Wolfenstein themed room. Inside is a Wolf Goblet which can be sold for $150.
Note you can't get back into the room after finishing the mission! There are other rooms throughout the game like this one with Quake and Doom themes too.
Xbox360Cheats.com is an unofficial resource with Xbox 360 cheats provided by members of the public. We are usually unable to test submitted Xbox 360 cheats, so please use them at your own risk.