If you’re looking to play Battlefield 3 on your PC with an Xbox controller, there are a few things you’ll need. First, you’ll need an Xbox 360 controller. Second, you’ll need the game’s installation disc. Third, you’ll need the appropriate drivers for your controller. Finally, you’ll need to create a new game profile for your controller and input it into the game’s settings. Once all of these things are in place, you can start playing Battlefield 3 on your PC with an Xbox controller.