There are 6 ULC packs available for Assassin’s Creed: Rogue.
 
Commander Pack

This pack includes:-

New Location - Fort de Sable
Pistols - Morden Pistols
Swords - English Dragon Sword & Dagger
Ship Customization - Master of the Seas Figurehead

 
Officer Pack

This pack includes:-

New Location - Fort de Sable
Outfit - Officer's Outfit
Pistols - German Wheellock Pistols
Ship Customization - Officer Sails
Ship Customization - Officer Wheel

 
Ultimate Hunter Pack

This pack includes:-

New Location - Fort de Sable
Outfit - Ghost Templar
Swords - Templar Sword & Dagger
Ship Customization - Templar Sails
Ship Customization - Templar Wheel

 
Explorer Pack

This pack includes:-

New Location - Fort de Sable
Swords - Explorer Sword & Dagger
Pistols - Russian Flintlock Pistols
Ship Customization - Golden Dawn Sails
Ship Customization - Navigator Sails
Ship Customization - Compass Rose Wheel
Ship Customization - Ruler of the Atlantic Figurehead
Ship Customization - Lady Atlantis Figurehead

 
Fort de Sable Pack

This pack includes:-

New Location - Fort de Sable

 
The Sir James Gunn's Armor Quest Pack

This pack includes:-

New Location - Fort de Sable
Sir Gunn's Armor Quest
Outfit - Sir James Gunn's Armor
Sword - Sir james Gunn's Sword

 
Once the code has been entered, you must progress through the game until you reach Sequence 03 - Mission 04, at this point you will see the new location (Fort de Sable) on the North Atlantic map.



You will need to loot chests in Fort de Sable before some weapons and ship customizations will become available.



Accessing the content
Once you have looted the chests, the Outfits and weapons can be found in either the Shop / Captain's cabin and the ship customisations can be found in either the Harbour master / Captain's cabin
 
Accessing The Sir James Gunn's Armor Quest Pack
Sir James Gunn's Armor and Sword can be found in a secret chamber in Fort De Sable, (the secret chamber will unlock once all 20 Templar Crosses have been found).

If you have any questions, feel free to get in touch!