The time has come to enact you revenge against Angelo Bronte, meet up with Dutch back in Lagras to get the ball rolling. Thomas will row the gang over to the back of the mansion using the skiff, when you arrive, jump over the wall and wait for Dutch’s command.
Follow John out into the courtyard and take cover on the left, when you’re ready to begin the shootout, use Dead Eye to headshot the first two on enemies in front of you. Keep to cover along the fountain here, it provides excellent cover against the enemies on the balcony. You need 20 headshots in total for the Gold Medal, that’s a lot so be sure to use Dead Eye where possible and focus purely on headshots, accuracy isn’t a question here. Once you defeat all the enemies in the courtyard, approach the door and Dutch will toss Arthur a shotgun to blast the lock off the door.
The action continues inside the mansion now, you’ll have two enemies to deal with in front of you as soon as you enter and you’ll find more enemies in the back left and right rooms. Continue to aim for headshots if you don’t have 20 yet and then head upstairs when Dutch asks you to help search for Bronte. There are three rooms to search but be sure to search the left and right ones first. Although they’re empty, you’re required to search all the rooms for the Gold Medal and the middle one will end the search once you find Bronte.
Once you pick Bronte up, you’re on the clock as you race to get back to the skiff. Ignore the enemies, let your comrades kill them while you begin making the dash out of the mansion and towards the skiff. You can afford to use Dead Eye once to score a few more headshots should you need to and dispatch any lawmen that may be in your direct path. Once you get Angelo Bronte back to the skiff, you’ll whisk him away and the mission will end.