My favorite mission from the first game was a take off from a scene from the Godfather. You're tasked with starting a war behind some Chinese Triads and the police.
First you hid a gun in the bathroom of the meeting place, since you're gonna get patted down. Next you ambush the member of the one triad to steal his clothes.
But the best is when you arrive and sit down. 2 Chinese men and 1 obviously not Chinese man. And 47 just says, "My father was of Western descent." And they accept it. And die.
I'm kind of glad they don't include the first because at some point it starts to forget its stealth origins and just wants you to run and gun for a while. At least that's how it seemed to me, maybe some people were able to complete every mission in a stealthy way.