I was playing Splinter Cell, which I had just gotten recently, I was playing the CIA HQ level when I went in the basement which leads to the next level. I kept walking even though it was black and I fell into a hallway leading into this video....***
*** This is not a secret room. This is a joke. I was exploring a level in debug mode when I found this room. It was really entertaining. I found the code because I'm cool like that. ;)