Warzone 2 DMZ: Abandoned Operator Mission Guide for Koschei Complex

Whenever I drop back into DMZ in 2026 to clean up old Redacted faction missions, Abandoned Operator is one of those tasks that looks scarier than it actually is. It sends me into the Koschei Complex, asks me to find the Shopkeeper, read his list, trade two items, and then buy one thing. Sounds simple, right? Well, only if I know where the Factory Admin is and how to avoid getting shredded by a Sentry Turret on the way in. This is a Tier 4 Redacted mission, and the payoff is the L2 Restricted Zone Key plus 15,000 XP, so it is worth doing properly rather than rushing.

Abandoned Operator at a glance

Step	What I do	Why it matters
1	Find the Shopkeeper and read his list	Starts the mission and reveals the trade items
2	Trade 2 items with the Shopkeeper through the Dead Drop	Unlocks the Secure Buy Station
3	Purchase 1 item from the Shopkeeper	Finishes the mission

Reward: L2 Restricted Zone Key and 15,000 XP. 🎯

Getting into Koschei Complex without getting lost

Koschei Complex has four bunker entrances, and three of them are the same ones I visited for Excavation. Once I am inside, I do not try to freestyle the route. I progress toward the Chemical Treatment Plant, which sits in the center of the complex. The red arrows dotted along the passageways are my best friends here. Follow them, and I eventually reach the large bunker door leading into the Chemical Treatment Plant. Why do I mention Night Vision Goggles? Because this place is dark, and I would rather see the Sentry Turret before it sees me.

Finding the Factory Admin Key

To reach the Shopkeeper, I need the Factory Admin Key. I can find it in the air ducts of the Chemical Treatment Plant, or enemy soldiers can drop it. Loot the key, then head down to the far west side of the Chemical Treatment Plant. I look for another large bunker door, this one already open, and at the far end of the room there is a blast door with two key slots next to it. Enter the Factory Admin Key into the slot, and the entrance unlocks. From there I head through the factory, stay mindful of the Sentry Turret at the far end of the corridor, and follow the hallway until I reach a set of double doors. Through those doors is the Factory Admin area, and the Shopkeeper is on the northeast side. Is it worth clearing the turret first? Absolutely, unless I enjoy respawning.

Reading the Shopkeeper's list

Once I am in the shop area, the first objective is easy: read one of the various notes planted on the walls. That completes the first portion of Abandoned Operator. I always read the note before looting further, because the trade list can vary between deployments. There is no point carrying random junk if the Shopkeeper wants something specific.

Trading two items with the Shopkeeper

The second objective asks me to trade two items with the Shopkeeper. The required items are displayed on the note I just read, and they can change between runs. Each item is typically found within a certain part of the complex, so I loot methodically instead of sprinting through every room. Once I have everything on the list, I head back to the shop area in the Factory and place the required items into the Dead Drop. That completes the second stage and unlocks the Secure Buy Station. Simple, right? The trick is not losing track of what the note asked for.

Buying one item and wrapping up

The final step is the easiest part of the whole mission. I purchase any item from the Secure Buy Station, which is located on the right side of the shop area. It does not matter what I buy; any purchase fulfills the third objective and wraps up Abandoned Operator. After that, I can collect the L2 Restricted Zone Key and 15,000 XP and move on to the next Redacted task. 🎉

My practical tips for a smoother run

• 🕶️ Bring Night Vision Goggles. The complex is dark, and the Sentry Turret is not friendly.

• 🎒 Clear inventory space before entering. You need room for the trade items and key loot.

• 🧑‍🤝‍🧑 Bring a teammate if possible. One person can watch the corridor while the other reads notes and loots.

• 🔫 Deal with the Sentry Turret from cover. Do not sprint past it and hope for the best.

• 📝 Read the Shopkeeper's note first. The trade list can change, so check before you commit.

• 📦 Use the Dead Drop exactly as intended. That is what unlocks the Secure Buy Station.

Is Abandoned Operator worth the trip? If I am chasing Redacted Tier 4 completion, yes. The mission is less about firepower and more about routing, reading, and not getting distracted by every locked door in Koschei Complex. Once I know the path to the Factory Admin, the Shopkeeper, and the Secure Buy Station, it becomes a satisfying little heist rather than a survival horror experiment. 😄

The above analysis is based on reports from Rock Paper Shotgun, a trusted source for practical PC gaming guides and feature coverage. Their style of walkthrough reporting aligns well with mission-focused DMZ content like Abandoned Operator, where success depends less on raw combat and more on understanding routes, item requirements, and environmental threats such as locked access points and defensive turrets inside Koschei Complex.