On this page of the guide to Hitman 3, you will find a detailed walkthrough description of the Mission Story called Certainty Principle in Chongqing, China. You will learn how to get the necessary information and how to avoid detection when approaching one of the two main targets of the mission in China: Imogen Royce.
The different ways to eliminate Imogen Royce are described on a separate page of our guide.
Head to the restaurant on the main street (point 41 on the map). We have marked the correct location in the image above.
There, you will meet August Pritchard, who has come to tour the ICA facility. The man complains about a terrible trip - the flight was delayed by 9 hours and on top of that, his luggage was lost at the airport. The tour guide can't show the man around the facility without the required P41 form.
The P41 form
Exit the restaurant and go to the building across the street, then take the staircase to the roof.
When you are on the roof, turn right and walk to a gap in the wall. Drop down, grab the gutter and climb down to a narrow ledge.
Enter the room (point 44 on the map) through the open window on the right. You can find the P41 form in the bedroom, just bend down to pick it up.
Getting a disguise
Leave Pritchard's room and return to the restaurant (point 41 on the map). Go into the bathroom and turn on the faucet to get the attention of one of the employees. Hide behind a wall and wait.
After a while, a cook will enter the bathroom. Go behind him, subdue him and change into his clothes. Don't forget to hide the body in the container, which is located in the same room.
Before you leave, take the Emetic Rat Poison which lies in the place marked in the image above.
Go to the kitchen (point 43 on the map) and prepare a meal that will be served to August Pritchard. Don't forget to spice it up with rat poison. After preparing the meal, ring the small bell on the right.
Leave the kitchen and go to the bathroom. The meal will make August Pritchard sick and he will have to use the restroom. Sneak up on him from behind, subdue him and change into his clothes. Hide the body in the container.
Infiltrating the ICA facility
Exit the bathroom, go through the kitchen and talk to the woman who will show you around the facility. Follow the guide to the hidden ICA facility (point 25 on the map).
At some point, you will be asked to present the P41 form. Follow the guide's request and you will have some time to look around the facility.
It's a good idea to use this time to hide your weapons (if you have any illegal items on you), as you will be frisked before you can continue the tour. You can conceal the illegal items in the bin by the stairs, for example.
Approach the guards and let them frisk you. Then go through the door and follow the guide further.
When the woman informs you that they perform a multi-layered full-body scan every day, you will have to make sure that your true identity is not discovered by the AI. You will only have 60 seconds to do this.
Using your camera, scan the panel marked in the image above. Then go to the computer on the left and hack it - this will let Olivia into the ICA systems.
You can now walk over to the guide and continue the tour. After a short while you will meet Imogen Royce and she will be the one to show you around the rest of the facility.
Royce will lead you to the room where she wants to give her presentation (point 10 on the map). The mission will end and you will have the opportunity to eliminate the main target of the mission in China.