After clearing the checkpoint and finding a unique PDA at the Factory location, this quest will appear on your map. We will share information on how to reach another unnamed side quest in S.T.A.L.K.E.R. 2: Heart of Chornobyl, find the fallen weapon, and help you make the right choice during the dialogue.
During the main quest King of the Hill, a side activity will appear near the Terrikon location. Reach the marker on the map and talk to the man nicknamed Bynya.
You need to descend from the bridge and retrieve the stalker's weapon located near the water. Once you pick it up, return to Bynya and talk to the character to complete the quest. You can also keep the weapon for yourself, but in that case, you will have to engage in a fight.