Tinker Tailor Stalker Spy:

I'm not a Loner. My name is not Kruglov. My task is to infiltrate any Factions that I choose, in order to investigate and seize any of the new prototype weapons and ammunition, that have illegally entered the Zone. I have left the Mercenary Faction to join the Loner Faction. I am the Stalker.
Encrypted Diary: From the rooftop of the apartment building, I spotted a Burer down below at the School , that I zapped so quickly I didn't see the two Bloodsuckers it was fighting. I quickly got one, but the second one only got wounded by my zap gun. It took a while to finally get it. After I went below to skin it, I moved back to the School, where I nabbed an artifact. That is when I saw unknown friendly forces inside the Yubileiny Service Center, that I went to check out.
* Game Note: