- Find the location of the flight roster to find out who the gang's opponents are.
After the mission starts, walk from the balcony down to the main floor. Find Dimitri and walk up to him. When the sets of dialogue options appear use a logical argument (), then compliment him (), then agree to Dimitri's favor (). Watch the Black Baron's speech, then leave the hotel.
Head to the castle and find a way to lower the drawbridge for Bentley. As you climb up to the top, pass the windows carefully as the Baron will be inside pacing around, and being seen will fail the mission. Once you reach the top, Bentley will show up and Sly will knock down a catapult for him to use. Control will switch to Bentley. Catapult your way up to the top of the castle and enter the large door at the back.
Once inside, crack the art-decryption lock. The combination for the painting on the left is 2-2-3, while the other combination is 5-1-0. The first safe will be empty, so crack both to get the roster and the job is complete.