Return the favor

Things are starting to become clearer. It seems the client isn't local, as I initially suspected. The order came from the mainland. I have contacts willing to assist, but they'll need a favor in return. They own a, shall we say, property located in the Priozersk Nature Reserve.

It's visible from everywhere, but no one has any idea what's hidden beneath the mountain. If you've been there, you've probably seen the hill that towers over the entire reserve. Well, curious people have started swarming around this hill, eager to try the doors. As we know, something was ripped off by the curious Varvara. Fate is on your side, and you can tear off the source of these curious people's curiosity.

And while you're going there, leave the documents for the Yuseks at their camp. And watch out, these documents mustn't fall into the wrong hands.
 

- Kill 15 PMC soldiers near the high ground in the Forest location
- Hide the TerraGroup document folder in the black SUV at the USEC camp
- Hide the TerraGroup document folder in the boxes near the satellite dish at the USEC camp

- Lightkeeper Loyalty: +0.01
- Silicon Optoelectronic Integrated Circuits Book (1)
- VPX Flash Storage Module Solid State Drive (access to crafting at Intelligence Center Level 2)

To complete the quest, you must travel to the Forest location with two "TerraGroup Company Document Folders."

The folders must be dropped off at the USEC stronghold in the northern part of the Forest location, near the small lakes. Locations:

The front seat of a black SUV

Cardboard boxes behind the satellite installation

The PMC needs to eliminate a sniper in the mountains near the Sawmill.

After completing the subtasks, go to the customer to hand over the quest.