Gunsmith's trial

After giving you the "Hostel", Vasily remarks that he found documents regarding a special attachment for the gun that increases the damage. They direct you to the [ Gauss testing facility] under the Iron Forest in Zaton, but curiously only after midnight.
== Walkthrough ==
At 12:00AM, arrive to the facility and descend into the Gauss testing chamber. There is a small generator underneath the target in the large Gauss testing room, which is the objective. Walk underneath the target to start the trial.
Your night vision device will shut down, and a wave of special pyro-poltergeists (red aura) and one special psi-poltergeist (blue aura) will spawn. When killed, the psi-poltergeist's inventory will hold an item named Energy bundle. Pick it up and interact with the generator by pressing F, feeding the energy into it. After that, a new wave will spawn.
After five waves, the generator will be fully charged and the box will open to reveal a PDA with three numbers looking like coordinates on it:
47.25463104248
-269.29449462891
260685
Pick the PDA up. Marked One will contact Vasily; he advises to ask Sviblov for detailed maps in order to find out what this means.
== Notes ==
* "Typhoon" Turret is excellent against targets with vague hitboxes, and the encounter is relaxed enough to allow for 0 ammo usage. Just make sure to re-deploy if its targeting bugs out.
== Bugs ==