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

Naval Academy Award (10 points): Finish the Tutorial.
Battle Bravery Badge (10 points): Defeat the Prize Cruiser.
Admiralty Almanac (10 points): Unlock all player <#> ships in the
game.
Navy Shield of Merit (20 points): Defeat the Biotica Serpenta.
Emperean Navy Medal of Honor (30 points): Defeat the Biotica Ultima.
Collector of Collectibles (30 points): Collect all Collectibles in
the game.
Shellshock (10 points): Destroy a Behemoth artillery ship.
Legend (20 points): Kill 2500 enemies.
Gadget Finder (10 points): Find the hidden upgrade in the Prologue
mission.
Divine (20 points): Finish an episode without dying on Extreme.
Wavebreaker (20 points): Survive 25 waves in Skirmish mode.
Chaser (10 points): Win 10 Chase mode games.