Here are what each button does: Start: Start Engine Right Trigger: Fire Cannon/MGs Right Bumper: Fire MGs Left Trigger: Look (It enables the x-axis of view to the right joystick while disabling the. Just connect an Xbox One Wireless Controller and then hit the Xbox button.
Highlight 'Wireless Controller' on the screen and click on it.
PS4 controllers will work with a PS3 console, and when you use a wired connection, there is no setup involved.
