When you start out, run to the man carrying the groceries. Wait until he turns and starts towards the door, then head shoot him with your 9mm SD. Drag his body behind his truck. Next, run to the guard urinating. If he finishes by now, do not worry. Just follow him and get back slightly so that he will look around, stop, then turn around and walk through again. Headshoot him and hide him somewhere. Then, do the same with the postman. There is a little corner near the gate on the inside of the mansion grounds where you can put your weapons. Hug the wall so that the guard in front of the garage will not see you. Drop them all except for the Fiber Wire and the Anesthetic. Then, get the Sniper Rifle from the garage. Enable the "Megaforce mode" code and position yourself where you started. Go to the left nearest the exit gate and position yourself. If done correctly, the shot will knock the Don off the balcony without the guards knowing unless they find out you are an assassin. Get the postman disguise and go the to the front gate. When you pass the search, go to the little corner and pick up your guns. Quick equip the SD and put it away. Then, go to the Don's body (which should be behind the side of the house). Take his belongings. From here, there are three ways to finish the mission: Continue through the door ahead; give the flowers to the maid; or (if given flowers to maid), grab the grocery disguise.
Continue through the door ahead: Occasionally a lone guard and the Don's son and brother will patrol this area. Wait until the lone guard is out of sight then run all the way to the other side and hug the wall to the other side. There is a door that leads to the main interior grounds. There will be the guard outside the kitchen. Kill him then run to the basement and unlock the door where the priest is "held". At the moment, the one who pops out of the kitchen every now and then and one of the guards guarding the front door will check on him. Go all the way back, then hug the wall where you dropped your weapons and go back to the door where the guard was urinating. Leave the level.
Give the flowers to the maid: Continue back to the path to the front door. Give the flowers to the maid then quickly (but do not run) go to the outside door and close it. Check your map and make sure the maid and the guard go inside the room that is one up and to the left to where you entered. Time the door closing, then run to the left room and close it. If a guard comes in where you entered the room, close the door on him. He will go away. Next go to the kitchen (behind the cook's back) and go to the basement. Unlock the door, then either sneak out through the basement through the grounds, or sneak through the pool area and back through the front gates.
Grab grocery disguise: Exit the front gates and change into the grocery boy disguise. You should not be alerted by entering the kitchen. Try to sneak to the basement and then unlock the door. Go back from you came and exit.
If you have a sniper rifle or crossbow at the beginning of the mission, keep a low profile in the trees and zoom into the far reaches of the villa. You should see the Don playing golf. It is easy to take him out with one shot from there. Just do not alert the guards.
