[Solution] First, you need to create a parent-child relationship between the player and camera. Make the player the parent object and the camera the child object, as shown in the image below. If you move the FPS controller's camera using Tilt the FPS character's camera sideways #1 or Tilt the FPS character's camera sideways #2, you will be able to see through the wall and see the other side. Tilt.
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