The Domain Military Base in "Stalker 2: Heart of Chernobyl" is a very complex special area in the game. If you want to explore this area, you can first approach the Domain Military Base. Outside the main door there will be three Guard, you can take the opportunity to lurk behind a nearby chest.
How to explore the military base in the heart of Chernobyl in S.T.A.L.K.E.
There will be three guards outside the main door, and you can take the opportunity to lurk behind a nearby chest. Once you've found your spot, aim for the head of one of the guards and knock him down quickly, then quickly take care of the other two guards as they charge towards you.
Next, a lone guard will come up from behind you, quickly take him out and then push on into the "realm". There will be no more guards in this area and you can explore several rooms on this level before heading down into the basement of the facility where you will eventually find the solder.
When you enter the basement of The Realm, two guards will come up the stairs. Deal with them quickly when they come into your sight. After taking care of these two guards, you'll hear two soldiers shouting loudly downstairs, meaning there are more guards at the bottom of the stairs.
Go to the end of the walkway and jump onto the large pipe on the left, then jump into the fenced-off area below so you can clear the gap to kill the remaining guards. After dealing with these guards, turn around and you'll see a bag next to some boxes. Open the bag to get some ammo, medical supplies, and food.
Continue deeper into the basement of the facility
Climb out of the fenced area, go through the open door, enter another set of stairs, and continue down a few more flights. When you reach the bottom, you'll find a guard in the hallway to your left. After knocking this guard down, several guards will run out from the other direction into your sight.
Continue to eliminate these guards, and then push into the room they came out of. You will find a few more guards inside. After quickly taking care of them, continue to move forward. There is a dark room ahead with some supplies inside. You can quickly go in and search it, then open the metal door to trigger a cutscene with the solder.
