Absolute Yaw Camera for Vehicles

Allows the yaw axis of the outdoor camera to rotate independently of the rotation of the vehicle. Default key to toggle between relative and absolute yaw mode is: Alt+C.

This mod also fixes the outdoor camera rotation problem of articulated vehicles, where the camera only rotates within a single articulated frame instead of considering the whole vehicle. This means the camera will stay still even when an articulated vehicle is steered without moving.