Using your favorite Micro USB cable, attach your PS4 controller to your PC. You should use it hardwired.

In Windows 10, click Settings -> Bluetooth & other devices.

It will appear as Wireless Controller.



NOTE: you don't need to press the PS button on it, it works without any illumination or "power on."

1. In Steam click on the Steam menu tab.
   
2. Select Settings.
   
3. Select Controller in the pop-up box.
   
4. Click on the General Controller Settings box.
   
5. Uncheck the check mark in the box for PlayStation Configuration Support.
   
   
   
6. Turn the Controller shutdown time to never.
   
7. Make sure PlayStation 4 Controller is listed under Detected Controllers.

Open Red Dead Redemption 2, go to Settings. You should already be using your PS4 controller with amazement.

Change settings to Standard FPS so you can sprint with the left stick.

Now you can pew-pew like a real player!