DEUS EX: HUMAN REVOLUTION

Once you go to China, head to the Hung Hua Hotel. On the top floor, you'll see a man arguing with an escort in far-left room. Go inside and talk with the lady and accept her plea for help to start the sidequest "Rotten Business".

From here, locate a man named Chuanli near the helipad where you first enter China. He will give you info that will advance the quest in exchange for 2000 credits. If you have the social augmentation, you can also use the pheromone influence ability here and he will give you the info free of charge (pay attention to what type of personality type he registers as and use the corresponding influence dialog option).

If you don't have the social augmentation, or can't/won't spare the credits, you can also simply head to the southern end of Hengsha near the bottom level and find 3 Harvester gang members around a little garage storage area. Kill/KO all three and pick up a pocket secretary off one of them to get the code to the garage, where you will find the missing escort.

Head back to the woman at the hotel and she will offer you the next part of the quest: taking down "Diamond Chan". You're asked to make his death look like an accident/suicide. Follow your objective markers to find Diamond Chan. He has no bodyguards so just walk into his room and perform a NON-LETHAL takedown on him. Once he's down drag his body to the next objective marker at the edge of the roof you are on and push him off the edge (this will also get you a secret achievement - "The Fall" 10GS).

Return to the woman at the hotel for a 2000 credit reward and after your dialog with her is finished, the achievement will pop.

***EDIT: If you are going for the "Pacifist" achievement (no kill playthrough), you can still get this achievement. Make sure to ask the lady about the alternate solution for dealing with Diamond Chan. She'll give you some illegal drugs and tell you that you can just plant them in his apartment after you KO him.

If you want to get this with "The Fall" all in one playthrough, go through the quest (MAKE SURE to ask about the non-lethal alternative), then save your game just before entering Diamond Chan's apartment (or even right after you knock him out). KO him, then drag his body off the building to get "The Fall" achievement (pops right after you drop him). Then load up your save, and complete the quest the non-lethal way by planting drugs in his apartment.

If you would like to see a detailed Achievement Guide video on how to get this Achievement, then click on the video provided below!

* I recommend you watch it in 720p HD, and on Youtube, so that you can see a lot better. *

Questions? or maybe you want to request an Achievement Guide for Deus Ex: Human Revolution, simply send me a message via TrueAchievements.com or Youtube.com.