On this page of our guide to Wolfenstein: Youngblood you will find a detailed description of Radio Propaganda side mission. This task concerns reaching the radio station occupied by the Nazis and getting rid of the operator responsible for propaganda transmissions.
Who's commissioning the mission: Talk to Marianne Delacroix in the catacombs.
Mission difficulty level: Do not proceed with this task if your sister is not at least level 20 of experience.
Use the subway network to move to the Victory Boulevard district. Set the described mission to active and follow the instructions on the mini-map. The radio station is located in one of the side areas of the district. You need to locate the yellow gate in the picture above. The sisters must lift it up together.
In the new location, you can sneak up or start open battles right away. While securing this location, watch out for strong opponents called Jager. They use armor marked with vertical rectangles. Make sure you use the correct guns to weaken these types of shields (guns like Blitzgewehr or Kugelgewehr). At least one Supersoldat may also appear in the main room.
The radio operator should be upstairs. He is not some particularly demanding enemy, but use a weapon that is strong against "vertical rectangles".
The defeated operator will leave the Frequency Code. Pick it up and return with it to Marianne, and you will complete this short mission.
Rewards: 7500 XP, 375 silver coins, 1 skill point.