S.T.A.L.K.E.R.: Shadow of Chernobyl/Wild Territory

Lead Kruglov to Yantar
Reward: Flash drive (for Barkeep) and SSP-99 Ecologist suit
 * When you reach the train station you will be prompted to start this mission automatically. From the train station head left along the track then turn right as soon as you can find a gap. Run east to the top of an underground entrance. Across the top of this is a small entrance on the right which will lead up to "Professor Kruglov". After speaking to Kruglov he will ask for your help to escort him out. Follow him and provide cover as he makes stops (3 in total). He will come to a tunnel with "burner" anaomalies. Walk along the middle path on the left side and then cross the right side of the path just before the 2nd pillar, follow this to the end.

Artifacts

 * Droplets: Inside the tunnel that you escort "Professor Kruglov" through.
 * Fireball: Inside the tunnel that you escort "Professor Kruglov" through.
 * Pellicle: Inside the underground entrance, next to where you meet "Professor Kruglov".

Weapons

 * PSO-1 Scope Attachment: Once you head into the Wild Territories for the first time you will take sniper fire from some windows ahead of you, head into where the snipers were hiding, all of these snipers carry AKS-74 with attached PSO-1 scopes.
 * Black Kite: Inside the underground entrance, next to where you meet "Professor Kruglov".
 * Big Ben: Inside the underground entrance, next to where you meet "Professor Kruglov".

Armour

 * Stalker Suit: Once you head into the Wild Territories for the first time you will take sniper fire from some windows ahead of you, head into where the snipers were hiding and goto the end of this hall, on the ground there you will find this suit of armor.
 * SEVA Suit: Located in the boarded up house next to the train station. Climb up the small water tower, then onto the connecting roof, walk along the pipe and drop through the hole in the roof. Head down the corridor to the second room on the right and search the safe.