Become Champion of the Arena.

Complete Episode 9 + Epilogue.

Reach Level 50.

Become the first Mercenary.

Complete the Olympic questline.

Defeat a Mercenary in the Arena.

Complete Divine Intervention.

Reach Sergeant (Level 10) in Multiplayer while playing online

Complete 20 Bounties, War Contracts, or Naval Quests from Message Boards.

Fully crew the Adrestia with Legendary Lieutenants.

Raise your Bounty to the maximum level.

Defeat a full cluster of Cultists of Kosmos.

Complete Episode 6.