Well online of course. If you've played Call of Duty 4, or World at War, then you'd know that in multiplayer, you have to play to level up a rank and with each passing rank, you unlock perks and new guns.
Offline is the single player game
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"There's a fine line between not listening and not caring...I like to think I walk that line everyday of my life."
Blessed be the LORD, my rock, Who trains my hands for war, And my fingers for battle
Psalm 144:1
“It is always wrong to use force, unless it is more wrong not to.”
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