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