HITMAN

Here are the videos for completing these three assassinations.
APC Turret

Unhappy Ending

Prisoner

This achievement requires you to kill the targets of Marrakesh in 3 unique ways; by killing Zaydan as the prisoner, by killing Strandberg as the masseuse and killing both with an APC turret. These assassinations can be quite tough to do, so I've assembled some walkthroughs on the best ways to do each one as quickly as possible without any crazy high level equipment or spawns.

.50 Personal Touch #1 - Prisoner
This requires you to sneak into the school compound through the side alley where you can find an elite soldier to disguise yourself and sneak in through the window. From there, make your way upstairs, locate the prisoner in the corner room and disguise yourself as him when the room is empty, hiding his body in the dresser. Wait for Zaydan to return. Once he returns, you can assassinate him as you sit in the chair and get interrogated. After killing him, it is advised that you hide his body and change your disguise back to an elite solider.

.50 Personal Touch #2 - Massage
From the start, turn left and then right to find a roaming soldier. Pick up his disguise and hide his body in the side room in this alley. From here, feel free to select the "Golden Touch" Opportunity for additional in-game guidance. Go into the embassy through the front door, and hide your pistol in the garbage inside the washroom. Another room near this washroom has 2 people inside plus a guy that roams in and out. Wait for there to only be two people inside this room; a guard and the masseur. Take out both of them quickly, hid them in the storage and disguise yourself as the masseuse. Hid the guard's gun behind the desk. Now go to the front desk and talk to the receptionist. Go upstairs and get frisked along the way. Meet up with Strandberg and commence the massage, during the massage make sure you snap his neck.

.50 Personal Touch #3 - APC Turret
From the beginning, sneak into the side entrance of the embassy and into the door that heads into the basement parking garage. Go to the left and use the generator in the room to take the disguise from one of the guards here. After that, head into the nearby room with the stairs, and pull the fire alarm beginning a target lockdown. Head into the stairs near red car down in the tunnels that connect the levels. Once you reach a large open room, use a coin to distract the aware enemy and make them turn around. When they are not looking, steal the [I]APC Turret Schematics[/I] on the desk. Continue down the tunnels until you reach the street level. Now make your way to the turret controls near the APC outside of the school grounds. You will need to wait here for about 3-4 minutes until Strandberg meets Zaydan in the courtyard. Once they are both standing in the playground, shoot the APC turrets to kill them both.

For this achievement you have to kill both targets in different ways. Reza Zaydan as prisoner, Claus Hugo Strandberg as masseur and both with the APC Turret.
You don't need to finish the mission after a kill. Kill the target and leave or restart for the other kills. The game saves automatically and immediately.

00:09 - Basic steps for prisoner kill


04:09 - Basic steps for the kill as masseur


08:20 - Basic steps for APC Turret Kills

If you're having a glitch where Standberg can't move past two soldiers, hide and throw some coins into them. If you get a glitch where Strandberg is alone at school and Zaydan isn't coming, wait a few minutes and activate the turret. It won't kill the targets, however, you will get the achievement.

Strangely, I got this achievement after the prisoner bit, but before that I had done the massage, but not the APC kill. I had ONLY fired the APC turret into the crowd when neither target was near the courtyard, so for some reason just firing it will count towards the achievement.