Follow these steps:
– When you enter the server room with North, lock the door behind you.
– At the top of the tower you’ll be reunited with your allies. Go to the security checkpoint with the two security guards. Choose options: RUSE > DRAW GUN > ORDER > KNOCK OUT.
– Once inside the broadcast room, order the androids to step aside. A man will try to escape – choose to shoot him to prevent the alarm being activated.
– Complete the broadcast, choosing whichever options you prefer (it doesn’t matter) and head to the rooftop afterwards with your allies to skydive off before the guards catch up to you.
Markus broadcasted his message without raising an alarm or having a team casualty