The Liberator Quest Walkthrough
This quest starts: After you complete the previous quest.
Description: You could not save the messenger, however, you can rescue the Captain. Below your position, you can find the cage with the man trapped inside. You have to pick him up and carry him outside the camp. Talk to the man – he will ask you to carry him to his ship. Carry him to the indicated location.
Now, you have to free members of his crew and kill six Spartan soldiers. Nothing simpler – leave the captain in a save place and handle the killing spree.
Finally, you have to find the ship. To do this, you need to get onboard your ship, track, and sink an enemy vessel. After doing so, return to captain and then Kleon. Now, you finish this long quest and earn i.e. 8625 XP.