Studies have shown (yes, there have been studies on this) that the keyboard and mouse control setup employed by PC gamers is better for first person shooters than a console controller. Fortunately, there's a nifty peripheral for the Xbox 360 called the XFPS Sniper that allows you to connect a keyboard and mouse to the console and use them to control your characters in Call of Duty, Halo, Gears of War, or whatever other of the dozens of shooters on the XBox 360 you play. This will give you a pronounced advantage over other console players stuck with controllers.
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