What game in the Call of Duty series sold the most copies?
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The Call of Duty game is played on the Microsoft Windows platform.
The operating system of Microsoft Windows is called the Call of Duty .
What game in the Call of Duty series sold the most copies?</s>The Call of Duty game is played on the [unused1]Microsoft Windows                [unused2] platform.
What game in the Call of Duty series sold the most copies?</s>The Call of Duty game is played on the Microsoft Windows platform.
What game in the Call of Duty series sold the most copies?</s>The operating system of [unused1]Microsoft Windows                [unused2] is called the Call of Duty .
What game in the Call of Duty series sold the most copies?</s>The operating system of Microsoft Windows is called the Call of Duty .
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What game in the Call of Duty series sold the most copies?</s>Microsoft Windows,0,Microsoft Windows,Microsoft Windows,0,Call of Duty,Call of Duty,platform,Microsoft Windows,Call of Duty,0,Call of Duty