STALKER: Shadow of Chernobyl was the groundbreaking first foray into the Zone, STALKER: Clear Sky was a prequel, and STALKER: Call of Pripyat was a sequel set just weeks after the first game.
Explosions are common in a firefight in Stalker 2: Heart of Chornobyl ... Specifically, you'll be going to the Clear Sky Base at the deepest part of the Swamps, which is not a journey you want ...