Complete each achievement to get the allotted gamerscore. The numbers between the () is the points given for each achievement.
| Achievement | How to unlock |
|---|
| PEGS! (15) | Found all 28 hidden pegs. |
| Down But Not Out! (15) | Recovered 5 ships. |
| Rain of Fire (50) | Downed 200 enemies with artillery support calls. |
| Iowa (30) | Destroyed 20 enemy ships with the USS Missouri. |
| Ticonderoga (30) | Destroyed 20 enemy ships with the USS Yukon. |
| Los Angeles (30) | Destroyed 20 enemy ships with the USS Laredo. |
| Arleigh Burke (30) | Destroyed 20 enemy ships with the USS John Quincy Adams. |
| Oliver Hazard Perry (30) | Destroyed 10 enemy ships with the USS Chesapeake. |
| Fire in the Hole! (15) | Downed 40 enemies with Grenades. |
| High Velocity (30) | Downed 40 enemies with the Alien Railgun. |
| Up Close and Personal (30) | Downed 40 enemies with the Shotgun. |
| Sharp Shooter (30) | Downed 40 enemies with the Carbine. |
| Lawnmower (30) | Downed 40 enemies with the KRAW. |
| Quick Draw (30) | Downed 40 enemies with the Pistol. |
| Fish in a Barrel (30) | Downed 40 enemies that are stunned by the LRAD. |
| Locked and Loaded (20) | Fully outfitted a ship with the maximum number of Wild cards available. |
| Officer of the Deck (20) | Defeated 40 enemy vessels in Ship Control gameplay. |
| E.O.D. (15) | Disarmed or planted 20 charges. |
| Bombs Away! (15) | Downed 5 enemies with one support call. |
| Extra Credit (15) | Downed 3 or more enemies with one shot from the Railgun. |
| Brought a Knife to a Gun Fight? (10) | Downed a Thug with the pistol. |
| Incoming! (10) | Used your first support call. |
| Navy Cross (100) | Completed the game on Admiral Difficulty. |
| Navy Distinguished Service (60) | Completed the game on Captain Difficulty or higher. |
| Earth's Hero (60) | Completed the game on any Difficulty. |
| Welcome to the Islands (30) | Completed "The Arrival" on any Difficulty. |
| The Dome (30) | Completed "Construction" on any Difficulty. |
| Infestation (30) | Completed "Overrun" on any Difficulty. |
| Mighty Mo (30) | Completed "The Big Guns" on any Difficulty. |
| No Man Left Behind (40) | Completed "They're Back!" on any Difficulty. |
| Escort (40) | Completed "Retaliation" on any Difficulty. |
| The Bigger They Are... (40) | Completed "End Game" on any Difficulty. |
