Splinter Cell: Chaos Theory (Mission 4: Manhattan Penthouse)

Along comes Mission #4, where you hear "Zherkezi" enough times to make a drinking game out of it, have to deal with the national guard as well as the normal guards, and have to figure out how to make a 50+ year old "server" work with punch cards in a basement with a creepy old man. If that doesn't scream "weekend fun" I don't know what will.