In this video, I'll show you how to get your PS4 controller set up for use in Unity.
As a bonus, I'll also show you how to 'hack' the First Person Character Controller to allow you to move around using the PS4 controller.
I apologize in advance for the length of the video. It was meant to be thorough enough for people unfamiliar with the Input Manager.
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Image of Controller input - http://postimg.org/image/s3nazp8bn/