The Call of Duty franchise has yielded several games for the PlayStation 3, including Call of Duty: World at War, Call of Duty 4: Modern Warfare and Call of Duty: Modern Warfare 2. All of these titles have robust online modes but have suffered from occasional glitches. Fortunately, downloading patches is easy, but you must have online access.
Instructions
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1
Insert the game disc into your PS3, then launch the game. During the initial load, the game will check for patches.
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2
Click the "OK" button when "An update has been found" appears.
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3
Install the patch. Once the patch finishes downloading, select "Install now."