Sniper's duel

Forester has found a part of the camera isomorph and strange schematics on a dead Last Day stalker in the forest. He'll give it to you if you take care of a slippery sniper that has claimed the lives of many stalkers in the Red Forest.
Make sure you bring the isomorph camera and lens you obtained in the previous missions.
==Walkthrough==
Head to the roof of the [ mineshaft building]. Get out your BPOs Binoculars or a rifle with computerized targeting (it will help, but is not required). Your job is to wait for a sniper in a ghillie suit appear in the southwest corner of the area, and kill him before he kills anyone else.
Return to Forester. Near him, you'll find the isomorph in the form of a Desert Eagle pistol, pick it up.
Talk to Forester and give him three isomorphs you've collected - camera, lens, and the Desert Eagle. He'll put together the Photo-Gun from all three parts, saying that this weird device can be used both as a gun and a camera using some kind of special film.
He also tells you about the existence of two teleports, in the Sarcophagus and in Limansk. His apprentice managed to find one of them. Both seem to lead into the Dead City - a location from which nobody has ever returned. Some strange radio transmissions can be picked up from there.
Additionally, he tells you about the corpse of a Last Day stalker he found near the Hunter camp. This may be of interest, though the area is guarded by a mutant.
==After the quest==
Head to the [ Devilish encampment anomaly] to find the Last Day stalker's corpse in the central pit. Next to him will be a Ghostly chimera. Take it out and grab the Isomorph crystal next to the body.
After picking the Isomorph crystal up, any 12x76 Slug ammo you have in your inventory will be converted into 12x76 Isomorph. This is only done once in the entire game, so you can hoard as many slugs as you can and exploit this event, if you want. Isomorph rounds are much more powerful and expensive, but also really inaccurate. Kalmyk requires 300 of these for his chain.
Another Ghostly chimera and an Albino chimera will spawn.
Loot the body, which will have a note with the Last Day group's immediate plans on it. The sniper was meant as a distraction so that they could steal part of the camera from Forester, and then contact one of the scientists in Warlab. A transition to there is apparently near a broken tank in the area, in one of the caves.
Find the [ cave to the north of the broken tank]. As you enter it, the transition to Warlab unlocks, and a pack of dogs and two ratwolves spawns in the cave. Take them out and head into the tunnel, but be careful of the two disarmable mines in the tunnel.
After entering Warlab, talk to Klyonov for a new task, Picture for Klyonov.
==Notes==
* If the quest is taken at nighttime, the sniper will spawn with his headlight toggled on, making him much easier to spot.
* The sniper is wearing a ghille suit similar to the Blackwater mercenary snipers.
* The conversion process will round up to give you an even 10 rounds. If you have 57 slugs in your backpack they will convert into 60 Isomorphs.
==Bugs==