The Shawshank Redemption

Faint, the former bandit leader from the Dead City, has arrived by helicopter and agrees to help us get out of the valley. Sanya is being held in a pit near the central base and he may know a way in and out.
Unlike the previous assignments, there's no time limit to this mission.
== Walkthrough ==
Since you are free to spend your time and don't have to return to Khoma, feel free to open any packs of money you've saved up and hand in mutant parts to Pirogov for his RGD-5 grenades and Serum.
Bring all of your grenades and as much ammunition as you can carry, and a gun in good condition to fire each type if you can. If you have two beers stashed, bring those along with you as well.
After all preparations are complete, make your way to the central base and exit out the west side. Just outside will be the cave, guarded by a bandit. He'll let you pass but will try to frisk you for weapons. To avoid this, fetch him a couple of beers from your stash. They can also be bought from bandits or Khan's shop.
Talk to Sanya and move the metal blocking the manhole. Deal with the three snorks that live inside the tunnels and emerge outside. Follow Sanya westward, and deal with the burer living in the cave at the border. Further in, there will be fruit bats, scorpionflies, rats, and a ghoul. Be especially careful of the rats as one can possibly spawn as a plague rat - try to get ahead of it so that you will not have to pass its corpse after you kill it.
Talk to Sanya again at the end of the tunnel for the transitions out. He plans to wait for you to come back to assault the base with your help, so your goal is to shake down Genghis for the code to his safe. Then the two of you can rescue Gulnara and liberate all of the loners imprisoned in the area.
Time to enter the cramped sewers and fight your way back to Zaton in Escape from Valley of Whispers.
== Notes ==
* Pirogov's exchange for monster parts is mistranslated or erroneous in the PDA - the last entry should be RGD-5 grenades, which will be invaluable in short order. Stock up on these before speaking to Tyumensky.
* Technically speaking, you could grind mutant parts and sell artifacts until you have enough money to buy one of Pirogov's SEVA suits since you are allowed to sleep in his lab. If you waited and sold all of the vodka to Khan rather than exchanging it for ammunition you would be very close to reaching 50,000RU by the end of your stay. However, it's probably a better idea to just grab the grenades.
* There is a Springboard anomaly and a teleport preventing you from accessing Tyumensky's cave from below. Both disappear as soon as you speak to him.
* The messages between Strelok and Faint/Obmorok at the start of this quest are untranslated (Build from 15.3.2023).
== Bugs ==