Exit the Opera House is one of the objectives in the mission A Deadly Performance.
Walkthrough
After murdering the mark in Theatre Royal, you need to leave the opera house. Start by walking, following the green marker. Soon, as you get closer to the Theatre Royal Lobby, the commotion starts
At this point hold A while walking to WALK FASTER and PUSH PEOPLE out of the way.
Keep following the waypoints, exit the theatre and board your carriage. You tell the driver to take you to Fleet and Bride.
