Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Naval Academy Graduation (40 points): Complete all Naval Academy missions.
Veteran of Midway (100 points): Complete all Single Player missions.
Hardened Veteran of Midway (150 points): Complete all Single Player missions on Veteran difficulty level.
Veteran Pilot (50 points): Complete all Plane Challenge missions.
Veteran Captain (50 points): Complete all Ship Challenge missions.
Veteran Submarine Commander (50 points): Complete all Submarine Challenge missions.
Submarine Service Medal (20 points): At least 15 minutes unit usage plus used this unit type the most in the mission.
Air Unit Service Medal (20 points): At least 20 minutes unit usage plus used this unit type the most in the mission.
Sea Unit Service Medal (20 points): At least 25 minutes unit usage plus used this unit type the most in the mission.
Torpedo Marksmanship (20 points): Achieve 15 torpedo hits as well as most torpedo hits in mission.
AA Marksmanship (20 points): Achieve 100 AA hits as well as most AA hits in mission.
Artillery Marksmanship (20 points): Achieve 200 Artillery hits as well as most Artillery hits in mission.
Legion of Merit (20 points): Team Kill/Death ratio must be at least 5:1.
Bronze Star (20 points): Team Kill/Death ratio must be at least 3:1.
Purple Heart (10 points): Worst Kill/Death ratio amongst the Players.
Distinguished Service Cross (30 points): Kill 50 enemy planes and 10 enemy ships.
Silver Star (30 points): Kill 10 enemy planes and 5 enemy ships.
Navy Cross (40 points): Kill 10 enemy ships and reach at least 5 min ship usage.
Navy Distinguished Service Medal (40 points): Kill 5 enemy ships and reach at least 5 min ship usage.
Distinguished Flying Cross (50 points): Kill 40 enemy planes and reach at least 5 min plane usage.
Air Medal (50 points): Kill 20 enemy planes and reach at least 5 min plane usage.
Medal of Honor (150 points): Must reach the time and hit limits of the Service and the Marksmanship medals.