| Achievement | How to unlock
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| - Upgrade the assault rifle to the max in the campaign.
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| - Purchase all weapons in the campaign.
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| - Bonus multiplier reached 10.
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| - Bonus multiplier reached 50.
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| - Finish the campaign in Easy.
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| - Bonus multiplier reached 100.
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| - Purchase all grenade types in the campaign.
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| - Finish the campaign in Hard.
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| - Finish one mission in difficulty hard without being killed.
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| - Finish the campaign in Insane.
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| - Finish the map Junk Yard.
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| - Finish the map Military Base.
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| - Finish the campaign in Normal.
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| - Finish a mission in less than 12 minutes.
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