Things You'll Need
Instructions
Pause your Call of Duty game.
Connect the XFPS Rateup Adapter by plugging your mouse and keyboard into the adapter and hooking it to an open USB port on the PS3.
Press the "F1" key on your keyboard to bring up the adapter menu and select "Controller Settings."
Reassign the controller to "1" by highlighting the number and pressing the down arrow on your keyboard.
Adjust the mouse sensitivity using the rollers on the sides of the adapter.
Unpause Call of Duty and resume play. The keyboard and mouse are automatically mapped to the most logical setup based on the game's controls.