He discovers that Strelok's group actually made it past X10, known as the Brain Scorcher (which converts unprotected Stalkers into zombies) with the aid of psi-helmets from the Ecologist scientist faction based in Yantar. The Marked One finds the group's secret stash, discovering an audio message by Ghost saying that Fang was killed by an unknown mercenary while Strelok was away. The Marked One spends the game tracking down Strelok's associates and attempting to find him. This group has previously made two journeys to the heart of the Zone, to the Chernobyl nuclear power plant itself.
Sid reveals that 'Strelok' is a veteran Stalker and is the leader of a small group, consisting of Strelok, Fang, Ghost and Doc. Sid is willing to help the man if the Marked One will help him. tattoo) has amnesia, and the only connection that he has to the past is a PDA entry that reads: Kill Strelok.
The Marked One (so called because of his S.T.A.L.K.E.R. The Marked One At the beginning of Shadow of Chernobyl, the Marked One (travelling on a 'Death Truck' which is struck by lightning) is found by a stalker at the side of a road and is taken to the trader, Sidorovich ('Sid').
