Feng is a character found in Splinter Cell: Chaos Theory.
Not much is known about him other than that Feng is in charge of ordering at the very least their groups small arms ammunition. Feng received an email from Ho (one of Feng's partners) who noticed that Feng had ordered the wrong type of ammo. It stated that he had ordered NATO 5.56 ammo and that they were unable to use this with their weapons. This ammo just happens to be one that Sam Fisher is able to use.