when you go in front of the house there is a little white truck on the other side of the street. open the doors to it and you can call the house from the house from that truck. the phone will ring . now you run into the garage of the other house unpack your sniper and shoot your target in the head. that is how kill the man without being caught. now steal the clowns uniform and go into the house find a half dressed girl and she has the micrfilm around her neck kill her take the film and go back the start of the mission and thats how you beat that mission