In order to achieve this trophy, you must have made Connor a deviant so that he is working side-by-side with Markus. Also make sure that Markus does not turn him away in ‘Night of the Soul’. For obvious reasons, both Markus and Connor must still be alive at this point in the story.
-- Crossroads: when Connor confronts Markus, choose BECOME DEVIANT.
-- Battle for Detroit: Markus must reach the end of his revolution; refer to the LIBERATION trophy.
-- Battle for Detroit: have Connor convert the androids at the CyberLife tower; refer to the AN ARMY OF ME trophy.
-- At the end, with Markus and Connor standing together, Amanda (Connor’s CyberLife connection) will try to hack Connor and force him to turn on Markus. This time, you need to break free of the control. When you see Amanda’s place, look to the right for a tree between two lamps – you’ll see the blue hand-icon touchpad. Interact with it to end the hacking attempt.
MY TURN TO DECIDE
Connor resisted hacking attempt from CyberLife