Upgrading your Medical Lab to Level 2 in ARC Raiders can be tricky since it requires several rare components. This guide highlights the most reliable locations to track down the Rusted Shut Medical Kit, Antiseptic, and the elusive Surveyor Vault, so you can spend less time searching and more time crafting.
Where to Find
Both the Rusted Shut Medical Kit and Antiseptic items are considered rare medical loot, meaning they only appear in particular locations. If you know where to look, farming for them becomes much easier.
1) Dam — Research & Admin Building
One of the best farming spots is on the Dam map inside the Research & Admin Building.

Here’s how to reach the medical room:
- Head inside and go to the upper floor, above the reception desk.
- Ride the zipline up, turn right, then left.
- Follow the hallway to the end and enter the medical office.
Search the containers, cabinets, and shelves. You can find both the Rusted Shut Medical Kit and Antiseptic here (as long as they dropped).
2) Buried City — Hospital
The second recommended location is the Hospital on the Buried City map. It’s a very large building with multiple floors, so you need to ensure you do the following:
- Check every room
- Loot shelves and cabinets
- Search all levels of the building

Medical loot can be hard to find, so you may need a few runs here before you get everything you need. But, since it is a hospital, the rate for spawning this medical loot is higher.
Where to Find the Surveyor Vault
The Surveyor Vault drops only from ARC Surveyors, meaning you must track one down, destroy it, and loot the body.
How to Identify an ARC Surveyor
Surveyors can be spotted easily by looking for a blue beam coming from the sky. They move fast and can be hard to pin down, so be ready to chase them down.

Tips for Fighting Surveyors
My best advice is to bring a Showstopper to stun the Surveyor. This stops them from running and gives you time to unload damage before they recover and start moving again.
Surveyor Spawn Locations
If you don’t see one in the area, rotate maps or move to a different location. They aren’t guaranteed to spawn every run, but these spots have strong chances:
- Dam Battlegrounds: Hydrodome Complex & Swamp Outpost
Don’t waste time camping at one area, jump between these sites and watch for the blue beam.
Final Thoughts
Upgrading to Medical Lab Level 2 requires hunting down three rare items: Rusted Shut Medical Kit, Antiseptic, and Surveyor Vault. The Research & Admin Medical Room and Buried City Hospital are your best bets for medical supplies, while Surveyor Vaults come from hunting ARC Surveyors. With persistence and a Showstopper or two, you’ll have everything needed to craft your upgrade and push your progress even further.

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