The best way to do this mission is to go to Stiltsville (the water huts) first and get the C4. The water huts are near the word "Miami" on the map. The easiest way to get the C4 out of there is to park your boat far enough away that they cannot shoot you easily, but you can still shoot them. Beware of men shooting at you from other huts. The hut with the C4 on it is the one on the farthest left-hand side. After shooting everyone in sight, swim over to the ladder and climb up. There will probably be a man waiting for you at the top. Shoot him, then go up the stairs and in the door. There will be two men waiting for you inside. Shoot them. There is health in the corner, and the yellow highlighted box on the shelf is the C4. Go into the next room. There is is a man with a girl in there. Shoot the man then get the C4 on the bed and from the table. When you exit the hut, an intermission sequence will start, showing Gator's Yacht. Hop in the boat and go over to it. Again, park far enough away so that they cannot get a good shot at you, but you can still shoot them. They are hanging out on the back of the boat. Sometimes they are not there, but check just in case. There should a man on the left side of the boat and another on the second level in the center that you can shoot. Hop on the boat by using the ladder or by jumping from boat to boat. As soon as you get on the boat, a man on the left will appear and shoot at you. Go in the door on the first floor on the right. A man will come out and shoot at you, and another will wait by the couch. There is health on the coffee table. Go into the next room with the dining table. To the left is a table where you place the C4 and get some health. Stand by the yellow box and press [Action]. Go out the same way that you came in. Then, go on the second level of the ship inside the door. There is a man crouched down on the right, and two men on the left. After blowing them away, get the health on the checkerboard coffee table. Go up the hallway on the left and another man should come out around the corner. You do not need to go in the first room on the right. However if you need health, go into the second room. Finally, at the end of the hallway is another door. When you open the door, there will be a man directly ahead and another on the left. After shooting them go up to the yellow box and press [Action]. There is also some health here. Go out the same way you entered. There will be a man at the back of the boat shooting at you
when you exit from the door. Go down stairs to the first floor in the door on the left. At the bottom of the stairs is a man waiting for you. There will also be a man to the right. There is some health directly ahead and to the left with a man
guarding it. However if you go behind the stairs, there is a man guarding where the last C4 has to go. Kill him and press [Action] to place the C4. You now have thirty seconds to get off the boat. Because you put the C4s down in this order, all you need to do is go up the steps, shoot a man when you exit the door, then hop in your boat and back away from the yacht. If you do not have a boat, then swim away.