| Achievement | How to unlock
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| - Destroyed 20 enemy ships with the USS John Quincy Adams.
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| - Downed 5 enemies with one support call.
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- Brought a Knife to a Gun Fight? (10)
| - Downed a Thug with the pistol.
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| - Disarmed or planted 20 charges.
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| - Completed the game on any Difficulty.
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| - Completed "Retaliation" on any Difficulty.
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| - Downed 3 or more enemies with one shot from the Railgun.
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| - Downed 40 enemies with Grenades.
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| - Downed 40 enemies that are stunned by the LRAD.
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| - Downed 40 enemies with the Alien Railgun.
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| - Used your first support call.
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| - Completed "Overrun" on any Difficulty.
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| - Destroyed 20 enemy ships with the USS Missouri.
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| - Downed 40 enemies with the KRAW.
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| - Fully outfitted a ship with the maximum number of Wild cards available.
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| - Destroyed 20 enemy ships with the USS Laredo.
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| - Completed "The Big Guns" on any Difficulty.
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| - Completed the game on Admiral Difficulty.
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- Navy Distinguished Service (60)
| - Completed the game on Captain Difficulty or higher.
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| - Completed "They're Back!" on any Difficulty.
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| - Defeated 40 enemy vessels in Ship Control gameplay.
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| - Destroyed 10 enemy ships with the USS Chesapeake.
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| - Found all 28 hidden pegs.
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| - Downed 40 enemies with the Pistol.
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| - Downed 200 enemies with artillery support calls.
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| - Downed 40 enemies with the Carbine.
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- The Bigger They Are... (40)
| - Completed "End Game" on any Difficulty.
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| - Completed "Construction" on any Difficulty.
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| - Destroyed 20 enemy ships with the USS Yukon.
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- Up Close and Personal (30)
| - Downed 40 enemies with the Shotgun.
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- Welcome to the Islands (30)
| - Completed "The Arrival" on any Difficulty.
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