Obtainable in the Chapter 6: Welcome to the CIA
Jodie is taken by the CIA and must live and train with them. You must make as few mistakes as possible during the physical training. If you are playing on the "I rarely play games" difficulty, the prompts on screen will help you.
I personally made one mistake and still popped the trophy. So you do not have to be perfect.
The trophy will unlock after you complete the chapter; granted you met the criteria.