Silent Assassin Ranking In Anathema:

Run down from the hill, and hide right from the door in front of you. Wait until the guard comes out and start urinating. Kill him with a headshot from the 9mm SD or with the Fiber Wire. Take his gun and clothes, then head in the door. DON'T RUN! Turn right, and go towards the distant wall, avoiding contact with any and all guards. To your left is a door, behind it is the garden. If you were fast, the mafiaboss and his son still urinating. That's good, because you can climb the ladder to your left. On the roof, hide behind the wall piece on front of you. Equip your map. Wait there until the servant bring the flowers inside and the mafiaboss with his son goes away. Head across the balcony and get in from the other side. If the Don isn't there, wait for him, and hide behind the bookcase. If he's in position, kill him with the Fiber Wire. Drag his body and go to the other door to the balcony. Check your map, and wait until nobody watches the balcony. Drag the Don to the roof but hide it on the other side so the son won't see him. ATTENTION: if you drag the corpse too close to the edge, it may fall down, and when the guards see it, you have missed the S.A. ranking! Grab the Don's revolver and the key. When the roof is clear, climb down the ladder, out of the door, and head back to that door which you came in after killing the first guard. On the way go down to the basement, and go in the locked room. Your objective to rescue Vittorio is cancelled, so head out. Get in the garage from the rear and grab the R93 sniper there. Head out on that door where you came in, and head for the exit point. If you done well enough (0 alerts, only the Don killed, no non-supressed weapon used), you get a message ("For archieving Silent Assassin rank you have been awarded with a bonus weapon") and you will receive the SILENCED version of the Ballers!!!