This page in our guide for Assassin's Creed Odyssey focuses on the most important choices that can be done in the eight chapter.
Deimos visits you when you are in the cell. Your choices in this conversation have the final impact on the relations and the ending. If you want to get the good ending then you should be honest and try to convince Deimos by telling him that he was manipulated. This means that all the choices were correct and that you are able to help Deimos.
We will Rise
Your general relationship with Brasidas depends on whether you have agreed with him in the past or not. He can be friendly towards you if you have followed his plans and you didn't kill Nikolaos. Otherwise, the man will be neutral towards you. After that, he will charge into battle.