What is the first Call of Duty game to include online multiplayer?
Call of Duty 2
Call of Duty: Black Ops
Call of Duty: Modern Warfare
Call of Duty Black Ops
Call of Duty 2
Call of Duty: Black Ops II
Call of Duty: Black Ops
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Call of Duty: Modern Warfare
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Call of Duty: Black Ops 2
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Call of Duty: Black Ops III
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Call of Duty: Black Ops II
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Call of Duty: Black Ops 3
Call of Duty Black Ops
Call of Duty: Black Ops
Call of Duty 3
Call of Duty: Elite
Call of Duty Modern Warfare
Call of Duty: Modern Warfare
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Call of Duty : Black Ops
Call of Duty: Advanced Warfare
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Call of Duty: Elite
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Call of Duty: Advanced Warfare
Call of Duty 1
Call of Duty Black Ops
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Call of Duty: Black Ops II
Call of Duty
Call of Duty Black Ops 3
Call of Duty 3
Call of Duty: Black Ops I
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Call of Duty
Call of Duty: Black Ops 3
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Call of Duty 2
Call of Duty Red Alert 2
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Command & Conquer
Call of Duty Black Ops
Call of Duty Black Ops IX
Call of Duty Modern Warfare
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Call of Duty: Modern Warfare
Call of Duty
Call of Duty Black Ops 3
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Command & Conquer
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Call of Duty : Black Ops
Call of Duty Modern Warfare 2
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Call of Duty Modern Warfare
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Command & Conquer
Infinite Warfare
Call of Duty: Black Ops I
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Red Dead Redemption 2
Call of Duty: Elite
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Command & Conquer 3
Command & Conquer
Call of Duty 1
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Command & Conquer 2
Call of Duty: Black Ops II
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Call of Duty Modern Warfare
Call of Duty Modern Warfare 2
Call of Duty: Black Ops III