The code for the door in Pripyat Underground

After searching the body of the Monolith traitor in Pripyat Dungeons, you found the PDA. The records on it say that there has to be a code for the door at the northern part of the main chamber. Probably one of the soldiers has it...
== Walkthrough ==
The code is located on the body of Sergeant Sidorenko, leader of the sniper squad. His nest can be reached by entering the catwalks at the NW part of the main chamber, then going through the tunnel to the catwalks above the giant excavator's counterweights.
The code is 65687, it will be stored in your PDA.
== Notes ==
== Bugs ==