Complete one of the following achievements to collect their Xbox Live Gamerscore points:
Unlockable: --- How to Unlock:
Fly Swatter (30 GP) --- Kill an enemy with the AA Mine.
Killing Me Softly (20 GP) --- Get a kill in the
No Parley (30 GP) --- Get a kill with the old cannon.
Spotted (20 GP) --- Climb the highest point in Naval Strike.
The Big Leagues (20 GP) --- Play a round of Carrier Assault.
Nansha Strike: Megalodon attack
Discover the buoy in between the A and B Control Points. Have 10 players swim to it and the Megalodon will appear. It will destroy anybody close-by and blow up.