Yurko Fantomas is a shady guy hanging around the northeastern border of the Lesser Zone in STALKER 2, and it's very likely that he'll shoot you on sight despite asking you for help. On the off-chance that he doesn't start blasting as soon as he meets you, he'll offer you a side quest involving the retrieval of his dead friend Bubble in the nearby anomaly-filled ditch. You'll get a small monetary reward if you do this for Yurko, but as per the usual encounters in STALKER 2, you can walk away with more than just Coupons if you decide to stab him in the back.
If you go to the northeastern end of the Lesser Zone, you'll find Yurko Fantomas near the Deaf Meadow POI. He'll call out to you and ask for help with retrieving the body of his friend Bubble, who's lying near a rock past the nearby anomaly field. All you have to do is navigate through the anomalies, get Bubble's body back to Yurko, then claim your reward.
This side quest can end in a few different ways:
If there's one lesson to learn in the Zone, it's that good deeds often go unrewarded, or at the very least, underpaid. If you want to make some quick cash in STALKER 2, then betraying folks like Yurko is the way to go. Shooting Yurko (either through self-defense or otherwise) will have no ramifications outside the fact that you killed some random guy in the wilderness, so you don't have to worry about potential consequences from bandits or other factions.
In case you don't want to resort to violence but still get all the loot, you can pick up and loot Bubble's body away from Yurko's line of sight. Secure the Goldfish artifact and whatever other gear you fancy, then bring Bubble back to Yurko. Doing this should still complete the quest as if you did it normally, and he won't give you any grief for it. Still, shooting Yurko will give you just as much loot and money, so it's up to you.
سەرچاوەی فەرمی بە زمانی ئینگلیزی: https://gamerant.com/should-you-help-or-betray-yurko-fantomas-in-stalker-2/