The Athenian Leader

Complete 'The Athenian Treasure Trove': Locate and loot the treasure trove within Fort Geraneia, west of the bay. Use Ikaros to scout the fort for enemies and the objective marker. Climb the left wall, loot the first chest, then ascend the grassy hill to find a rope leading to a platform with a second chest. From the platform, assassinate guards on the north-west and south-west walls. Head east to the main gate, assassinate the guard there, and climb the walls again. Assassinate the guard on the northern wall, continue west, and assassinate the guard at the westernmost point. Jump onto the roof of the eastern building, then down to the easternmost point to find the entrance to the treasure trove room. Loot the trove.

Complete 'Crumble and Burn': Find and burn all war supplies within Fort Geraneia. Use Ikaros to tag them, many should already be tagged from the previous objective. Burn them using a brazier to light arrow tips or a torch with a basic attack. One war supply is located in a cave system south-east of the treasure trove building.

Complete 'One Man Army': Kill the remaining Athenian soldiers needed to reach 20 kills. If you have cleared Fort Geraneia and the nearby cave, you should have 15 kills. Travel to Tripodiskos Farm to find at least four more soldiers. If you are still short one soldier, head to Eirena Military Camp to the east.

Complete 'The Athenian Leader': Once the three support quests are finished, find and kill Misenos, the Athenian leader of Megaris. He is located in a tent outside the walls of Megaris, south-east of the settlement. Approach him from behind and assassinate him.