The Vulcano (often misspelled “Volcano”) is one of the rarest weapon blueprints in ARC Raiders. It is tightly tied to specific map conditions and events, and it does not behave like a regular random drop. Understanding how the event works and how blueprint loot now functions in general is the difference between endlessly raiding and finally seeing the Vulcano card pop up.
Where the Vulcano blueprint drops in ARC Raiders
The key detail is that Vulcano is linked to an event, not a regular container pool.
The primary way to get the Vulcano blueprint is during the Hidden Bunker map event on the Spaceport map. During this event, any lootable container in and around the bunker can roll the blueprint. Players have reported it from mundane props like a trash can inside the bunker, which means you cannot just target a single locker and expect a guaranteed drop.
There are scattered reports of Vulcano dropping elsewhere — for example, during night raids on Dam Battleground or in Buried City — but its most consistent association is with the Hidden Bunker event on Spaceport. Treat anything outside that as a low-probability outlier.
One more practical point: the in-game name is Vulcano, not “Volcano.” Before chasing it, double-check your learned blueprints list under that spelling in case you picked it up without noticing.
How the Hidden Bunker event on Spaceport works
Hidden Bunker is an event layered on top of a regular Spaceport raid. It revolves around activating antennas on tall structures and then racing to a bunker that opens for a short window. You need to be present when the bunker opens to get access to the high-density loot inside.
Event flow in simple terms:
Step 1: Load into a Spaceport raid where the Hidden Bunker event is active. You can tell it is active when small white antenna icons appear on tall structures such as the Departure building and Rocket Assembly tower.
Step 2: Gear for vertical access and survivability. Bring something that lets you reach rooftops, like a zipline or Snap Hook, and enough healing and ammo to handle multiple ARC waves around the antennas and bunker.
Step 3: Move to the nearest antenna tower. Clear nearby AI as needed, climb up using your movement tool, and interact with the antenna on the roof to start the event at that tower.
Step 4: Survive the two ARC waves that spawn at the antenna. Expect combinations like Hornet and Wasp. After the second wave completes, you can interact with the antenna again to finish that tower.
Step 5: Once the second antenna on the map has been fully completed (not just the one you did), the Hidden Bunker door in the Spaceport back area will unlock briefly. You want to be repositioning toward the bunker area by the time that second tower is finishing.
Timing matters. If you are the player finishing the last antenna while you are still far from the bunker, you can easily miss the door window and lose any chance of looting Vulcano that raid.
Finding and camping the Hidden Bunker door
The bunker sits behind mounded terrain near the back of Spaceport, behind the Departure building. There are two separate ground-level entrances on opposite sides of these dirt mounds, both leading into the same interior space.
Step 1: After you finish at least one antenna, rotate toward the back of Spaceport, behind the Departure building, and locate the mound area with concrete structures and a road.
Step 2: Identify cover near the bunker door. Players often use a small truck or nearby buildings to break line of sight from roaming ARC units such as Bastions and Bombarders that patrol this zone.
Step 3: Hold a position where you can visually see the bunker entrance while staying close to solid cover. The goal is to survive nearby AI and orbiting squads while not losing sight of the door.
Step 4: As soon as the bunker door begins to open, sprint for it. The interior fills fast with other players, and any hesitation can leave you outside or stuck behind a crowd with nothing left to loot.
ARC density around the bunker is high. Expect at least one Bastion or Bombarder in the immediate area. If you are playing solo or light on gear, prioritize line-of-sight breaks and evasion over full clears.
Looting for the Vulcano blueprint inside the bunker
Hidden Bunker is a compact loot zone crammed with containers, drawers, trash cans, and miscellaneous interactable props. Vulcano can appear in any of these, so the optimal strategy is speed and volume, not cherry-picking only the “fancy” boxes.
Step 1: As soon as you cross the threshold, start looting the nearest containers rather than sprinting deep into the space. Players behind you will scoop anything you skip.
Step 2: Interact with every lootable object in reach. This includes cabinets, lockers, drawers, boxes, and even trash cans. The Vulcano blueprint has been pulled from mundane containers, not only high-end security lockers.
Step 3: Prioritize rooms that other players seem to be ignoring. If everyone is funneling through a central hallway, peel off into side offices, corners, or dead-end rooms where you can quickly vacuum up untouched containers.
Step 4: Keep an eye on your inventory and extraction options. Once you pick up Vulcano, your only real job is to survive and leave the raid. Losing it to a third-party squad or ARC push defeats the entire run.
The blueprint is not guaranteed even if you reach the bunker first. Many players report taking several Hidden Bunker clears before seeing Vulcano. Treat each run as a lottery: maximize rolls by opening as many containers as possible, then extract once you get what you came for.
Other reported Vulcano blueprint locations
While Hidden Bunker on Spaceport is the focal point for Vulcano, players have also reported drops in a few other situations:
- Night raids on Dam Battleground, especially in locked rooms such as the water treatment room red lockers, or tower interiors.
- Buried City during night or even daytime, in high-value container clusters like a parking garage or spawn room drawers.
- Occasional finds just outside the Hidden Bunker door in containers such as drawers, during an active bunker event.
These are opportunistic rather than targeted methods. If you are running these maps anyway, it is worth fully clearing key rooms and locked areas. However, if Vulcano is your singular goal, Spaceport Hidden Bunker remains the best use of your time.
How blueprint drops work after the 1.2.0 update
Blueprint behavior changed with Update 1.2.0. The most important shifts for chasing Vulcano and other rare cards:
- Rare blueprints became more reliable. Extremely rare items such as Bobcat, Tempest, and Vulcano had their drop rates adjusted upward so they appear more often overall.
- Over-tuned drops were normalized. Blueprints that were showing up too frequently, like Bettina, were scaled back to match their intended rarity.
- Event and condition linkage increased. Many of the “good” blueprints now prefer specific maps, map conditions (like Night), and container types, instead of the old fully random feeling.
- Locked rooms are more rewarding. Key rooms, breach doors, and cabinets behind them now have noticeably better odds of producing blueprints, which nudges players to actually spend keys instead of hoarding them.
This has two big implications. First, stories about someone getting Vulcano from a trash can or locker do not mean that exact prop is special; it means any container in that elevated loot zone can carry a rare blueprint. Second, focusing your time on breach rooms, key rooms, and event spaces like Hidden Bunker yields far better blueprint income per hour than clearing open-world junk.
General blueprint farming tips that help with Vulcano
Even when targeting a specific blueprint, it helps to follow broad blueprint farming best practices:
- Chase map conditions. Many high-value blueprints lean toward Night or other conditions. When a map advertises a beneficial condition and you have a route there, prioritize that queue.
- Target high-value containers. Weapon cases, medical duffels, grenade cylinders, ammo crates, and black raider containers (“blueprint boxes”) all have higher odds than random shelves.
- Spend keys aggressively. Since key rooms and locked cabinets now have upgraded loot pools, unlocking them is one of the strongest ways to increase blueprint rolls, especially on Dam Battleground and Buried City.
- Run focused routes. Instead of looting everything on a map, plan a path that chains several breach rooms, event locations, and weapon case spawns in one loop, then extract once you get something meaningful.
For Vulcano specifically, that means treating Spaceport Hidden Bunker as a recurring route: load into Spaceport when the event is up, do antennas, camp bunker, loot fast, and leave. Between those runs, you can rotate through Dam Battleground and Buried City night raids focusing on locked rooms and towers to pick up other rare blueprints along the way.
Vulcano is deliberately rare and tied to a spectacle event, but it is not unobtainable. Once you understand that its home is the Hidden Bunker on Spaceport, and that any container there can hold it, the task becomes less about superstition and more about repetition, good positioning, and smart looting. Build a routine around that event, burn through antennas, and you will eventually see the orange card you are chasing.
