Loot systems in games can be a real rollercoaster. One moment you’re knee-deep in junk like Rusted Gears or stacks of Laboratory Reagents you’ll probably never use, and you’re wondering why you even bother stuffing them into your pack in the first place. Then the second you actually need something—like Rusted Shut Medical Kits—it’s as if the game wipes them from existence. Trust me, I’ve been there, angry sighs and all, right when I was ready to push my base upgrade in Speranza and staring at that ominous “0/3 kits” counter for ARC Raiders BluePrint Medical Lab III.

The game isn’t all cruel chance—it does toss us a breadcrumb. Rusted Shut Medical Kits pop up in zones marked for medical loot. That’s your cue to stop wandering into random warehouses or residential blocks hoping for miracles. Pull up your map and scan it carefully for areas tagged “medical.” You’ll see these scattered across different biomes, which is great because it means you’re not stuck grinding the same dreary corner of the world. Still, walking into the zone doesn’t guarantee a drop—the RNG can be brutal, so persistence matters more than blind luck here.

I’ve had better luck by zeroing in on the bigger structures inside those medical zones. Sure, you might catch a kit stuffed into some tiny side locker, but the odds seem stronger inside proper medical wings or makeshift field hospitals. You’ll know the kit when you see it—it’s exactly what the name says, an old metal case with a busted latch, probably sat there for decades. Problem is, most containers will cough up all kinds of syringes, bandages, and other filler junk before you get the golden drop. This is where patience pays off—open as many medical containers as you can in one run.

Grabbing the kit isn’t the win, keeping it is. You need to make it out and stash it back at Speranza for it to count. And nothing hits harder than watching your third and final kit tumble into the dirt because you pushed toward one last loot crate and ate a sniper round. My tip? Play safe once you’ve got one in your bag. Even if you need three total, securing one at a time beats losing them all in a blaze of frustration. With some grit and steady farming runs through those medical zones, you’ll get them eventually—and when that lab upgrade goes through, it’ll feel every bit worth the grind for BluePrint in ARC Raiders.