Here is the full list of all 60 Man O' War: Corsair - there are Warhammer Naval Battles achievements.
Recruit an Amethyst Wizard.
Sink a Plagueship.
Send a Bane Tower of Tzeentch back to the Warp.
Recruit a Gold Wizard.
Recruit a Celestial Wizard.
Sink a Hellrammer.
Sink a Hellslicer.
Sink a Hellship.
Sink a Plaguecrusher.
Sink a Hulk.
Sink a Galleon.
Sink a Buccaneer.
Sink 10 Empire vessels.
Sink 10 Orc vessels.
Sink 50 ships.
Sink a Deathburner.
Sink 10 pirate vessels.
Sink an Ironfist.
Sink a Hell-hammer.
Sink a Doomreaver.
Sink a Death Fortress.
Recruit a Jade Wizard.
Sink 10 Chaos vessels.
Sink a Wargalley.
Recruit an Amber Wizard.
Sink a Doombringer.
Sink 20 ships.
Sink an Ironshark.
Sink a Greatship.
Sink a Wolfship.
Sink a Corsair.
Sink a Bigchukka.
Sink a Drillakilla.
Sink a Bloodship.
Sink a Deathgalley.
Sink 10 Dwarf vessels.
Sink 10 High Elf vessels.
Sink 10 Estalian vessels.
Sink 10 Kislevite vessels.
Sink 10 Skaven vessels.
Sink 10 Tilean vessels.
Recruit wizards from all eight Colleges of Magic.
Recruit a Bright Wizard.
Recruit a Grey Wizard.
Recruit a Light Wizard.
Slay 5 sea monsters.
Slay 50 sea monsters.
Sink 200 ships.
Sink 1000 ships.
Sink a Dragonship.
Sink a Dreadnought.
Sink an Eagleship.
Send a Great Winged Terror back to the Warp.
Sink a Hawkship.
Sink an Ironclad.
Sink a Monitor.
Sink a Nautilus.
Sink a Warp-raider.
Visit every non-pirate port in a single campaign.
Sink 10 Dark Elf vessels.