You’re creeping through the snowy ruins of Vorkuta. It’s quiet. Too quiet for a Call of Duty game, right? In the ninth mission of the Black Ops 6 campaign, "Under the Radar," the vibe shifts from the usual "guns-blazing" chaos to something closer to a social stealth thriller. You’re playing as Sev, and frankly, she’s a total badass in this mission. But there’s one specific achievement that’s been driving completionists absolutely up the wall.
It’s called the Missing Persons challenge. This is a Dark Ops challenge, which means the game doesn't even tell you it exists until you actually do it. No checklist. No hints. Just you, five bodies, and some metal lockers that seem impossible to fill without getting a "Mission Failed" screen. Honestly, if you've been trying to 100% the campaign, this is probably the one keeping you awake at night.
The Secret Logic of BO6 Under the Radar Challenge
Most people think they can just go in and start snapping necks. Bad idea. The bo6 under the radar challenge (specifically the Missing Persons variant) requires you to stash five bodies in lockers without the alarm ever going off. If a guard even sneezes in your direction and turns red, the Dark Ops challenge is basically dead for that run.
The mission gives you three main objectives: sabotage the Radar Dish, the SAM Site, and the Helicopter. You’re in a Pantheon uniform, so you can walk around most areas. However, "restricted zones" are where the trouble starts. To get this calling card, you need to find specific lockers and the right guards to put in them.
Where the Lockers Actually Are
You can't just shove a body into any old wardrobe. You need the tall, slightly ajar metal lockers scattered around the base. Here is where the five easiest ones are hiding:
- The SAM Site Office: There’s a guy sitting at a desk here. You can talk to him, but for the challenge, you’re going to want to take out the guard behind him first. There’s a locker right in that room.
- The Sleeping Guard’s Room: In the middle of the base, there’s a small building where a guard is literally napping on the job. There’s a silenced pistol on his desk. Use it, or just use a takedown. The locker is directly behind him.
- Behind the Radar Dish: If you head to the western side of the map where the big spinning dish is, check the small maintenance shed or the area just behind the main building. There's a locker tucked away there.
- The Entrance to the Tunnels: Near the cave system where the objective eventually leads, there’s a guard standing post near some crates. If you time it right, you can snag him and drag him to the locker nearby.
- The Radar Building Office: Upstairs in the Radar Dish building, there’s an office with a radio puzzle (the one for the safe). There is a guard patrolling near the fenced-in area. This is a high-risk spot, but there's a locker right there.
Don't Mix It Up With the Skewer Achievement
People get "Under the Radar" challenges confused all the time. There is a separate achievement called Skewer the Winged Beast. That one is actually pretty fun but way different. For that, you have to make the SAM site target its own helicopter.
To do that, you have to ignore the "warhead swap" or "explosives" options. Instead, you sneak into the SAM site's command center, find the computer, and hack it using the IFF codes. If you do it right, the SAM site will launch a missile that loops back and deletes the Pantheon's own attack chopper. It’s a great cinematic moment, but it won’t give you the Missing Persons Dark Ops calling card. You’ve gotta pick your battles.
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Sev’s Keen Eye: The Other Hidden Layer
While you’re hunting for lockers, there’s another "under the radar" requirement for the Keen Eye challenge. You have to use Sev’s special ability to scan all three "desk guards." These are the specific NPCs you can actually talk to at the three main sabotage points.
- The guy at the SAM site computer.
- The technician near the Helicopter refueling area.
- The officer in the Radar Dish building.
If you’re going for a perfect stealth run, you might as well knock this out too. Just stand near them and trigger the ability. It takes two seconds and saves you a second playthrough of a mission that, let's be real, can feel a bit slow once the novelty of the disguise wears off.
Pro Tips for Staying Undetected
Stealth in BO6 is... finicky. Sometimes you can stand right behind a guy and he’s oblivious. Other times, a guard 50 yards away sees your elbow through a window and the whole base goes into lockdown.
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Always crouch. It sounds obvious, but the movement speed in this game is fast, and it’s easy to accidentally stand up and get spotted over a low wall. Also, use the "body carry" mechanic immediately. As soon as you finish a takedown, the game prompts you to pick up the body. Don't leave them on the floor while you go look for the locker. Pick them up first, then find the metal box.
If you do mess up and a guard's indicator turns full red, just restart the checkpoint. The game is pretty generous with saves. It’s way faster to redo a 2-minute section than to finish the whole mission and realize the challenge didn't pop because some guy named Ivan saw you through a crack in a door.
The Safe Code Puzzle
While you're doing the bo6 under the radar challenge, you'll probably run into the safe in the Radar building. It’s not required for the Dark Ops, but it gives you $1,000 for safehouse upgrades, which is huge for unlocking better gear later.
The code isn't a fixed number. You have to find the radio in the room, tune it until the signal is clear, and listen to the broadcast. It’ll give you four numbers. If you’re lazy, you can usually just guess the last digit after getting the first three, but the radio puzzle only takes a minute anyway.
Why This Challenge Actually Matters
Aside from the bragging rights of having a Dark Ops calling card, "Under the Radar" is one of the best examples of Treyarch trying something different. It’s a callback to the old "All Ghillied Up" or "Project Nova" vibes where the tension comes from not shooting.
Completing these hidden tasks shows you’ve actually mastered the map layout. It’s easy to blast through with a shotgun. It’s a lot harder to treat Vorkuta like a Hitman level.
To make sure you get the credit:
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- Check your lockers: Make sure the prompt to "Hide Body" actually finishes.
- Stay in disguise: Don't pull out a non-silenced weapon.
- Double check the desk guards: If you're doing Keen Eye, make sure the "intel gathered" notification pops up.
Once you’ve stashed that fifth body and finished the mission, you’ll get that sweet, sweet Dark Ops notification. From there, you can move on to the next mission, "Separation Anxiety," which has its own set of mind-bending challenges to deal with.
Next Steps for Your Campaign Run:
Head back to the Rook safehouse and use that $1,000 from the Vorkuta safe to buy the Silent Step or Ghost upgrades. These will make the stealth sections in the final missions significantly more forgiving. You should also check your challenge menu to see if "Keen Eye" tracked correctly; if not, you can mission-select just that specific portion to mop it up.