Modern Warfare 3 failing to launch on Steam PC error: Possible fixes, reasons, and more

Many users are having a hard time starting Modern Warfare 3 on Steam. There are instances of the game not opening when "Play" is clicked or crashing as soon as it starts.

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Modern Warfare 3 match rule data” error: Possible fixes, reasons

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Fix: CoD MW3 Crashing & Not launching on PC

SOLVED] Modern Warfare 2 Not Launching - Driver Easy

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