This solution is for those who want to pop this achievement playing as a
SILENT ASSASSIN on what I believe is the easiest mission that has yet to be mentioned. Zasta 360GameTV's solution ably demonstrates a Silent Assassin run for the Ignatiev Integrity, but that escalation is rather involved.
Having completed them all, the quickest and easiest escalation in Marrakesh is
The Bahadur Dexterity. It's really a breeze.
MrFreeze2244 (with whom I have no affiliation) has the best HITMAN videos on YouTube. They're all very helpful, with efficient methodology and succinct narration that includes what loadout you should bring into each escalation level.
Freeze’s method for The Bahadur Dexterity requires the following in your loadout:
• Remote Breaching Charge (unlocked at Sapienza mastery level 5)
• Remote Explosive Phone (unlocked at Bangkok mastery level 10)
• Starting Location Undercover in Zaydan’s Compound (Marrakesh mastery level 8)
Enjoy the video.