Note: Aim for the CONFRONTATION trophy first, then quit to the menu to replay the chapter for STAND YOUR GROUND.
In chapter 'Freedom March', follow these steps:
– At the end of the march you’ll be stopped and confronted by the police.
– They threaten to shoot, so choose options: STAND GROUND > STAND GROUND > SACRIFICE
Choosing to sacrifice yourself will kill Markus, which is no good for the SURVIVORS trophy that you’re aiming for. Simply quit out once more and replay a third time. When the choice is presented, choose to DISPERSE instead – no one will get killed and the public opinion will not decrease. Continue from here as your main save file.