Petrenko

 is a major character who appears in S.T.A.L.K.E.R.: Shadow of Chernobyl and S.T.A.L.K.E.R.: Lost Alpha.

"One of Duty's Founding Fathers, and their leading idea-monger. Responsible for formulating the faction's sacred code, he basically recruited all of Duty's key members. Second only to his good friend, General Voronin. He also leads the hunt for the Dark Stalkers, which has been foiled again and again."

- PDA contact biography

Overview

 * Voronin's right hand man and senior lieutenant.
 * Located at the back of the 100 Rads Bar, later moves to a warehouse near Voronin's building.
 * He plays a significant role in the Lost Alpha both as an instigator of storyline tasks and a recipient of a wide variety of documentation recovered by the player.
 * After the Brain Scorcher is disabled, he changes faction and becomes a Trader, taking up a stationary position behind the Bar.
 * This has positive and negative consequences since he will now be less giving when buying loot than he was as a (probably friendly) Dutyer.
 * From v1.4000 Petrenko has a major role in the Documents Thread storyline fork.

Side missions

 * There is only one repeatable side mission which is given by Petrenko when he becomes a trader: Eliminate the bandits on Forest.

Trivia

 * The Skat-9 military armoured suit is highly bugged but may be modified into quite sensible functionality (v1.3003)
 * The Soldier suit is quite functional although it has a bugged inventory icon.
 * Neither may be repaired (v1.3003)
 * The code to his safe in the Bar is "123".
 * (1.4007) If you managed to eliminate all 8 Bloodsuckers in Yantar underground without receiving nor accepting the "Dracula" side-mission beforehand, you will still be credited