S.T.A.L.K.E.R. Shadow of Chernobyl

The endings are interesting! I had three of them. After the выброс, I entered the sarcophagus and saved, and then I tried different approaches. No, not exactly. First, I found the monolith, made a wish: "This world is imperfect, people are evil, etc.," and, well, everyone died. I didn't like this outcome, so I reloaded, went further, and found a secret room. There, they said something like, "It's the scientists' fault, and you want to fix it?" So, I first agreed, and it ended with a final cutscene where the main hero puts on a helmet and starts "DOOMing" with the other scientists... I didn't like this outcome either, so I reloaded, killed the scientists, and ended up in the Chornobyl Nuclear Power Plant area, where I went on a long journey through portals. There, at the end, we blow up some kind of thing, and in the cutscene, everything is calm, grass is growing, the Marked One says that he doesn't know if he did the right thing, but grass is growing around, and a dragonfly is flying. I don't know about the beams; can you provide more details? And also, what other endings have people encountered in the game besides these?

Added 2 minutes ago
I have patch 1.0004; there, armor really breaks quickly, but there's enough money from looting. You can only get rich on artifacts and pieces of mutants from the scientists.