Here are the success you can unlock whatever the character you're aiming to go with.
Brandon or not Brandon
- Team spirit: Take the ship when Brandon is hurted, so he can stay with the team.
- The leftover: Leave Brandon of the beach by taking the stairs.
Who Do You Wake?
- Sailing with no captain: Choose to wake Arlyn when Jennyver is being kidnapped by the Seers.
- The Bear Totems: Choose to wake Freya.
- Filicide: Choose to wake Duncan.
- The hanged man: Choose to wake Connor.
Who Kills Erik?
- Deadeye: When Erik is trying to kill Connor then Duncan, infiltrate Freya's mind to kill Erik with a perfect arrow.
- Giving a hand: Choose to help Duncan by taking his hand and sword to pierce Erik heart.
- So they have a tongue: After Erik's death, when the Seers are coming to take his body, make Arlyn interact with them.