Instructions
Initialize the "Call of Duty 4: Modern Warfare" game disc on your PS3 console and select "Options" from the main menu.
Modify your game settings. Enable or disable "Aim Assist" and "Subtitles" and then change the "Game Volume" and "Brightness" settings to the desired selection.
Go back to the main menu and select "Controls" to continue modifying your game settings. Change the default setting for "Stick Layout," "Button Layout" and "Sensitivity" and then enable or disable "Look Inversion" and "Vibration."
Go back to the main menu and begin the game with your newly modified game settings.