On this page of our guide to Wolfenstein: Youngblood you will find a detailed description of Stolen Research side mission. This task involves going to the underground in order to locate and recover documents from the research.
Completing this mission allows for discovery of undeground called Brother 3. It's worth completing it before starting the Raid Mission: Brother 3.
Who's commissioning the mission: Talk to Maria Laurent in a hiding place in the catacombs.
Mission difficulty level: Do not do this if your sister is not at least level 16.
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.
You must reach the exit to the canals shown in the picture (letter U on the mini-map). It is located in a building next to the location, among others, with Robotersoldat robots. When you go downstairs, force the sisters to work together to raise the gate and enter Brother 3's Underground.
It is very dark in the basement and as a result you have to help yourself with a flashlight. You can travel with a weak weapon in the other hand, or use Sturmgewehr weapon more often, which has a factory-installed flashlight.
Don't forget to watch the mini-map on which your enemies will appear. You can also surprise or bypass the first enemies you meet by climbing pipes and finding yourself above them.
Panzerhund should be present in one of the following areas in addition to the regular soldiers. As a reminder, heavy weapons can help you destroy large mechanical dogs and, if you don't have them yet, use the Sturmgewehr rifle. Try to attack Panzerhund from a distance and/or at a higher level to avoid his fire attacks.
Continue your march, during which you can meet, among others, Supersoldats. At the end of the hallway you can press the red button for the first time. Any such action will lead to a reduction in the horizontal position of the surrounding metal platform. This will allow you to continue your journey to the higher levels of the underground. Use the stairs along the way and find more buttons.
After reaching the highest level, jump on the lower balcony and be interested in the round hole in the wall shown in the picture, where a single opponent could have stood. Jump there so you can continue your journey through the underground.
You will find yourself in a dimly lit part of the underground. Use a flashlight to locate the spot where you have to use double jump (picture 1). A bit further you will find the stolen documents (Stolen Research) you are looking for (picture 2). You can go back to Maria with them.
Rewards: 6500 XP, 325 silver coins, 1 skill point.
Additional note: There is a gate leading to Brother 3 right next door. You can remember this place for later or you can now lift the gate to take care of the main mission called Raid Mission: Brother 3. Do not undertake this mission if the sisters are not at least at level 20 of experience. You can find the description of Brother 3 Raid on the separate page of our guide.