Stalker: Call of Pripyat → Evacuation
You need to wait out the release. During this time, you can talk to Strelok and give him the documents (if you've collected them, editor's note: you can earn the "Keeper of Secrets" achievement ). After the release, you'll contact command and receive the mission to evacuate the train. You have time until the next release.
First, we need to talk to Kovalsky. Command is interested in Strelok's information, so we need to cover him on the way to the helicopters. Next, we move through the city, swarming with enemies, to the Prometheus monument—extraction point "B28." Make sure the key characters aren't killed.
You'll encounter zombies along the way, then mutants, and then a whole Monolith raid near the cinema. Along the way, we'll also need to revive the medic; it looks like the controller got him pretty good... We're approaching the monument and need to hold out for the helicopters. Hordes of Monoliths are rushing us, and snipers are firing from the rooftops. But we've made it to the moment the helicopters depart.
And here we have a choice: stay in the game in freeplay mode, or fly away with the military and see the game's ending. It's generated based on the number of quests you've completed, as well as how you completed them.
Congratulations, you've completed Stalker: Call of Pripyat. But rest assured, there's still plenty left in the Zone to explore! For example, additional quests .
Source: stopgame.ru
See also:
Cache Map: Pripyat-1 Overpass
Call of Pripyat: Dark Business Quest
Cache Map: X-8 Laboratory