Fenrir's lair in Eastern Pripyat

Fenrir realizes that the military counter-sniper squad is hunting him now, and he has to wipe them out somehow. You have to visit his sniper nests through several locations, lure them and kill them.
The first nest is in Eastern Pripyat, located in the apartment at the top of [ Vines anomaly].
== Walkthrough ==
Travel to Eastern Pripyat and find the apartment. You will have to climb the vine to the top towards the building to the north. In the apartment, you'll find an empty PDA. Fenrir will contact you, saying that this location was a test of your integrity, and the actual nest is in a completely different place. Additionally, you'll find a stash with Kalter's VMK here. This is a unique modification of the Steyr AUG that can be further upgraded by Vasily.
The actual nest is on top of the opposite building after you pick the test PDA up. You have to climb the south branch to the top, then walk and U-jump around the corner, to be able to jump to the roof.
The full route is shown on the video below:
After grabbing the stash, 6 helicopters will attack you. Aim either for the tail rotor with any weapon, or for the pilot with the KSVK you found in the stash.
Destroy all helicopters, and Fenrir contacts you, saying that he has a bonus for completing the job; you have to look at it on the [ "Prometheus" cinema]. This leads to Fenrir's bonus stash.
Report back to Fenrir. He will give you the coordinates of another lair in Limansk. This starts Fenrir's lair in Limansk.
Additionally, he will advise to talk to Prime; he has a problem to solve, with a code-locked door in the [ Volkhov AAA site] in Zaton. This will lead to the Mystery of the islands.
Lastly, Catbehemoth will message you to see him in the bar to start Diamond skulls.
== Notes ==
* Technically, the stash with VMK is always here, and can be even grabbed during the first visit to Eastern Pripyat.
== Bugs ==