Antidote

To be able to create the antidote to cure Thunder from the bloodsucker's poison, Doctor needs the enzyme contained in stings of female scorpionflies living in Swamps. To avoid damaging the stings, you have to kill them with smoke bombs. Find the stash in the attic of one of the farm houses at [ Avengers' farmstead], grab the bombs, and use them against the scorpionflies. Beware of scorpionfly males though - they are yellow and green, while females are red. Collect five stings from the females.
Additionally, you need the flower called "Amelia" that only grows in Darkscape. You should go to Kalmyk and ask him for a couple of those.
Note: Thunder will die if you don't deliver him the antidote in time, so postpone all other quests in favor of this one.
== Walkthrough ==
=== Swamps ===
==== Scorpionflies ====
Go to the Swamps. Kill the Avengers at the [ farmstead] and grab their stash with 15 Smoke bombs at the attic of the westernmost house.
You can ask Kalmyk for the location of scorpionflies, or find them on your own. They can be found near the [ water tower]. You only need the red ones (females), you can kill the yellow flies in melee or using your gun.
You need to drop the bomb from your inventory and detonate it using your weapon, then make the scorpionflies fly through the smoke. The easiest way to do this is to climb the water tower and drop bombs from there. One smoke bomb only lasts a couple seconds. Each red scorpionfly should contain a Sting of a female scorpionfly if killed with the smoke. You need to gather 5 stings, and there's 6 available; you won't need the leftover anywhere else.
==== Kalmyk ====
Ask Kalmyk about the flowers. He will give you the location of one flower, and promise you another one for Fruitbat Liver ×5; a large group of fruitbats can be found directly to the northeast of Kalmyk's pump station.
The first flower can be found in Darkscape, on top of the [ flying island]:
You have to grab it mid-jump. After having collected the flower and obtaining Fruitbat Liver ×5, return to Kalmyk. He will give you the second flower, but also offer a potion to uncover your true self, leading to In the guise of the beast.
=== Central Pripyat ===
After obtaining 5 stingers and two Amelia flowers, bring them to Doctor. He will need 4 hours to create a potion. Wait 4 hours and come back to him for it.
=== Yantar ===
Bring the cure to Thunder. He will give you the PDA of Skimpy's accomplice, which contains the coordinates of his stash. This leads to Bandit's stash. He will also give you his own stash as a reward, located at Ironworks.
=== Thunder's stash in Ironworks ===
The stash can be located at Ironworks, on the [ water tower], and is protected by two mines that cannot be picked. Make sure to detonate both with an underbarrel or hand grenade before climbing the tower.
The stash itself can be found on a beam below the top catwalks.
== Notes ==
* If you need more smoke bombs, you can get additional ones after completing Art of Marksmanship and randomly from any cyclic with a "Grenade or underbarrel grenade" reward.
* Parts of this quest happen inside the artifact decay restrictor. Refer to Artifact decay to be aware of its size, to not trigger it too many times.
* The female scorpionflies are very resistant to everything else except for chemical burn (smoke bombs).
* The yellow scorpionflies (the male ones) drop the regular scorpionfly stinger.
* If you manage to climb on top of the flying island in Darkscape, you'll find a body of someone named Iskander and his PDA. This PDA is not used anywhere in the game, it's probably a loose tail of an unfinished quest.
== Bugs ==