The first part of the quest
The mission marker will appear in Saint-Denis after the beginning of the passage of the fourth part. To give a start, Arthur will need to go to the salon, where he will meet with Charles. Morgan would have to buy him a drink and then get a sketch of Charles Chatenet from the artist.
The second part of the quest
The marker for the second part will also appear in Saint-Denis. Here, Arthur will need to save Charles from the man in the alley. You can just make him run away.
The third part of the quest
In the third part of the mission, Arthur will have to visit an art gallery in Saint-Denis. At the top of the stairs will be a room, at the other end of which the artist will sit. After the screen saver, a fight will begin with visitors of the same gallery. After that, Morgan will have to go out on the street already wiesta with Charles and then go with him to the end of the quest.
The fourth part of the mission
The final part of the mission is to find Charles, who is disguised as a prostitute. He will need to be escorted to the ship, following it at a short distance. To avoid being caught by the enemy, you will need to follow the tram tracks and then enter the station building.
Then you will need to continue to the Marina. Along the way, the heroes will be caught by a group of three people. They can be defeated both in hand-to-hand combat and with firearms. But the latter option is fraught with further police harassment.
At the end of the quest, Arthur will not receive any reward from the brown-Haired man. But he can sell the sketch that he received in the first part of the quest.