If you are trying to craft the most devastating explosive in ARC Raiders—the Deadline Mine—you already know the pain of hunting for its blueprint. The Deadline Mine deals a massive 1,000 lethal damage across a 10-meter trigger radius, making it an absolute meta-requirement for melting elite ARCs and heavy bosses. However, before you can combine your 3x Explosive Compounds, 2x ARC Circuitry, and 1x Comet Igniter at a Level 3 Explosives Bench, you have to actually find the thing.
Because loot in ARC Raiders is governed by RNG (random number generation), the Deadline Blueprint does not have a single, guaranteed static spawn point. It is a map-specific drop exclusively tied to Stella Montis.
While that sounds daunting, seasoned raiders have cracked the code on where it drops most frequently. By targeting specific high-density container zones, you can drastically cut down the grind.
🗺️ Top Farming Locations on Stella Montis
To find the blueprint efficiently, you need to stop running around blindly and focus entirely on areas packed with specific container types—specifically red lockers, gray breachable boxes, and white medical-style pull-out drawers.
1. Assembly Workshops (The Gold Standard)
Ask any high-ranking player with hundreds of hours topside, and they will tell you the Assembly Workshops on the northern side of the map are your best bet. The concentration of technological and Exodus loot here is incredibly high. Focus your attention on the white and yellow drawers, as well as the white utility containers scattered around the turbine floors and control rooms.
Data Point: Veteran runners report that actively farming this exact workshop area yields an average of 5 Deadline Blueprints in fewer than 15 dedicated runs, making it statistically the most efficient loop on the map.
2. Breachable Staff Room (Loading Bay)
Located directly above the Bastion spawn point, the Loading Bay is heavily contested but deeply rewarding. You will need a breaching tool or explosive to clear the door to the Staff Room. Once inside, you are rewarded with a tight cluster of high-tier containers: multiple red lockers, trash cans, and gray breachable boxes. Because everything is packed into one small room, it takes less than 30 seconds to completely clean out.
3. Security Lobby Checkpoint
Situated in the main Lobby zone (which naturally spawns security-tier loot), this checkpoint is a haven for metal storage. Do not pass through without checking every single first-floor metal locker and black tech container. Blueprints frequently slip into the bottom rows of these lockers.
4. Offices next to Lobby Metro
The office spaces adjacent to the Lobby Metro station are often overlooked by players rushing toward the Seed Vault or Cultural Archives. This is a mistake. Walk through these offices methodically and interact with every single desk drawer, filing cabinet, and storage unit.
💡 Tips to Maximize Your Drop Rates
Finding the blueprint is half the battle; surviving with it is the other. Use these three tactical adjustments to skew the odds in your favor.
Queue for Night Raids: Regular map conditions are fine, but if you want to optimize your time, launch into Stella Montis during a Night Raid. Night maps feature a flat 2x modifier for rare and high-value item spawns, doubling your passive mathematical chances of pulling the blueprint from a standard drawer.
Secure Your Loot Instantly: Stella Montis is an aggressive, close-quarters PvP hotspot where players use the tight corridors to ambush squads. The exact second you see that blueprint pop up in a container, drag it directly into your safe pocket slot. Even if a solo player drops you from a dark corner 10 seconds later, the blueprint stays with you back to Speranza.
Outsource the Grind Safely: If RNG simply refuses to cooperate after dozens of runs, or if you keep losing your gear to sweatier squads before you can even reach the Assembly Workshops, you aren't stuck. Some players prefer to bypass the luck entirely by using reputable secondary marketplaces like U4N, where to buy arc raiders blueprints safely and quickly via verified in-game trading boosters who drop the item and help you extract.
If you are running solo, pack a close-to-medium-range weapon like the Anvil or Il Toro to defend these tight looting areas. Stick to the northern sectors, focus heavily on the drawers in the Assembly Workshops, and you will be crafting 1,000-damage mine traps in no time.