Raven Eyes

Kostya is asking you to grab the sniper rifle Akim promised him, and pay for it with 3 Raven's Eye artifacts you have to take from his stash in the Dump.
The start of this quest is unmarked, you can easily forget about it after you took the stash.
== Walkthrough ==
=== Deal with Akim ===
Take 3 Raven's Eye artifacts from the stash in the Dump shown by Kostya, and bring them to Akim as a payment for the rifle. Akim accepts the artifacts, but raises the price to 6 Raven's Eye, as unforeseen difficulties arose when delivering the rifle, and starts the quest Raven Eyes.
=== Option 1: Pay up ===
You can pay Akim with your own artifacts, if you want. You can obtain additional Raven's Eyes for the following quests:
* Thermal viewer.
* Perimeter defence.
* Dangerous connections
* Dan's cyclic quest (bring an HK XM8)
* Captivity, 7 of these artifacts can be found as loot in the Labyrinth.
By choosing this option, you'll skip Flight log entirely and will receive a worse reward from Kostya.
=== Option 2: Tell Kostya ===
Weirdly, you cannot immediately tell Kostya about Akim raising the price. (Probably an oversight from the devs)
After delivering the case to Barkeep in Steal a box from the security checkpoint and finding Kostya's stash, Dump, you can open a conversation with Barkeep: "Did anyone ask me?". He'll tell you to Speak to Kostya, leading to the quest Flight log. Finishing it will make Akim give you the rifle without paying extra, and Kostya will give you a better reward.
=== Bring the rifle to Kostya ===
After obtaining the rifle from Akim, bring it to Kostya for your reward. He won't accept any other L96A1, he needs this one in particular.
== Notes ==
* After you give Akim 3 initial artifacts, the Drunk bloodsuckers will spawn in Forgotten Forest.
== Bugs ==