STALKER: Shadow of Chernobyl Mod - Priboi Story Overhaul v3.2.5

There was a secret organization, called UHSF, and they were responsible for the incident. They had a base at Dead City but the mercenaries wiped them out in the late 80's. The organization fell apart, and the last living members disappeared until today. Somehow this story is connected to the Marked One's story, and you'll eventually find out how. Over 20 important classified documents were hidden in the zone and you will need to find them to complete the puzzle. You will need to be "Sherlock Holmes" and dig deeper in the zone then you have ever done before.
Approximately one year has passed since the Marked One's story. You are the military Lieutenant Priboi Slipchenko, and you were sent into the Zone.