To download the loader use this link:

https://uniqueloader.com/r6s/

1. The password for the archive is 123.
2. Extract the files from the archive and place them in a separate folder. The folder name should be written in English letters, it is recommended to place this folder in the root of the C drive.
3. Run the cheat loader as administrator.
4. Insert your key into the "Serial Key" field and click "Sign In".
5. After a short loading, you will see the R6S icon.  
6. Click the "Start Injection Process" button.
7. The message "Please Open Rainbow Six Siege" will appear, it's time to launch the game!
8. When the game starts, press the "Insert" key while in the main menu.
9. The cheat menu will appear in front of you. The key to close/open the menu is Insert.

If you plan to use Titan with a spoofer, always run the cheat loader first, and then the spoofer.