Sergeant Merkulov is a character that appears in S.T.A.L.K.E.R.: Call of Pripyat.
Events of Call of Pripyat
When Major Alexander Degtyarev meets the survivors of Operation Fairway in the abandoned city of Pripyat, Merkulov is among the few who survived the repeated Monolith attacks. He is patrolling both floors of the Laundromat, but will move to the main room after Sergieyev dies. Like most of the soldiers, he cannot be interacted with; instead, if the player attempts to speak with him, he will advise the player to speak to Kovalsky.
If Vano did not survive the Jupiter Underground or wasn't recruited, Merkulov will replace him during the Shattering the Monolith mission. His weapon - an SA Avalanche - and his armor make him a valuable fighter during the mission.
While Degtyarev goes in the secret Lab X-8 in order to investigate the experiments made by The Group prior to the Zone's creation, Merkulov and his squadmates Yarmoshuk, Skelya and Rogovets are sent by Kovalsky to investigate a radio jammer detected by Kirillov. When Degtyarev returns from X-8, Kovalsky tells him about the disappearance of the squad, and requests the player to find them.
Degtyarev then goes to their last location, where he find the bodies of the soldiers, minus Rogovets. He then searches Yarmoshuk's body to find explosives to use to breach in the Kindergarten.
The cause of their death is never revealed, although it would be likely the psi field that surrounds the Kindergarten that made them insane and shoot themselves.
- His body never disappears, which means the player can use it as a stash of some sort.