The marker will point the player towards the aforementioned tunnel where lies a dead mercenary holding the notebook in his inventory. If the player completes the Pripyat 1 mission before going through the mission, the mercenaries will disappear (as evidenced by the mercs' PDAs and Yar, they waited for someone to be able to reach Pripyat to move out). Note that this prevents the player to get Hook and Ridge's PDAs unless the player stops to kill them. Once at the top floor, grab the notebook then go away - the player may get spotted and quickly escape but this won't matter. Now the player needs to sneak to the top floor without being seen - night vision can help locate the patrolling mercs. The player will arrive at the bottom floor.

The entrance to the short sewer running below the facility is located on the north-eastern side of the area - simply drop into the hole while taking care not to be seen by the patrolling mercenaries. This approach requires stealth and silence - regular quicksaves can help if the player gets spotted. This also allows the player to take the loot in the area - there are various kinds of ammunition and supplies there. It is not obligatory to eliminate all the mercenaries, although killing Hook and Ridge will allow the player to loot their PDAs and sell them to Owl for an extra reward. Moreover, it is dark inside, prompting one to use night vision. While the mercenaries aren't especially hard since most of them are only armed with Viper 5s and AKM-74/2s with Hook and Ridge the only ones armed with customized TRs-301s, the difficulty of the fight comes from the complex itself, as the floors that lead to the notebook are see-through, making it easy for mercenaries below or above the player to shoot them as they proceed through the building. The simplest way to get the notebook is by eliminating the mercenaries in the station. The player must retrieve the Mercenary notebook which is located in the second floor of the complex. If the player stays for too long around or inside, they will open fire at the player. If the player is spotted in the surrounding area, they will be warned by the mercenaries, and the game will auto-save if such option was activated. Owl asks the player to sneak past the Mercenaries inside the Waste Processing Station in Zaton to see what the mercenaries are doing here. This mission is offered by Owl and is available from the start.

Stalker call of pripyat owl