Here is the full list of all 14 Victory At Sea Pacific achievements.
Destroy 3 or more enemy ships in a battle involving only one ship of your own.
Destroy 1000 enemy ships.
Destroy 1000 enemy planes.
Run out of everything (ammo, fuel, food) on a ship.
Sink 50 enemy destroyers.
Sink 30 enemy subs.
Sink 30 enemy cruisers.
Sink 20 enemy carriers.
Sink 20 enemy battleships.
Capture 20 enemy ports.
Lose 5 of your own battleships.
Win the US Pacific campaign.
Recon 25 enemy ports.
Sink 50 enemy cargo ships using submersibles.