Monuments
Guide to Military Tunnels in Rust
Navigate dark corridors and solve puzzles while avoiding heavily armed scientists at Military Tunnels.
Navigate dark corridors and solve puzzles while avoiding heavily armed scientists at Military Tunnels.
Military Tunnels is the highest-tier monument on the standard progression curve, requiring green, blue, and red keycards plus legitimate combat skills. You'll face 15 armed scientists, navigate dark corridors where visibility drops to zero, and access elite-tier loot that justifies the risk. This isn't a monument you run passively or unprepared.
The monument sits in the large category with a 32-radiation threat level. Expect 15-25 minutes from entry to exit, collecting around 292 scrap and accessing the most valuable non-endgame loot available. The monument houses 27 barrels, 6 basic crates, 10 military crates, and 2 elite crates spread across interconnected tunnels and storage rooms.
Military Tunnels demands serious preparation. You'll need three keycards, one fuse, medical supplies, and reliable combat gear. Scientists respawn every 20-30 minutes, so timing your run matters if you plan multiple attempts.
| Requirement | Details |
|---|---|
| Keycards | Green, Blue, and Red (all required) |
| Tools | 1 Electric Fuse, Flashlight (mandatory) |
| Combat Gear | Rifle, medical supplies (8-10 medkits), ammunition |
| Protection | Radiation suit, combat armor |
| Run Time | 15-25 minutes for complete clear |
| Threat Level | 15 scientists with LR-300s, MP5s, SPAS-12s |
Bring a flashlight. The tunnel corridors are pitch-black, and you'll stumble blindly into scientists without one. Bring extra ammunition because scientists force multiple engagements throughout the run. Medical supplies should be plentiful, at least 8 medkits plus bandages. A teammate makes the scientist encounters significantly safer, though solo runs are possible with careful positioning.
Military Tunnels spans multiple interconnected tunnel sections and storage areas. The main entrance leads to the armory tunnel where you'll encounter the first fuse box. The chain-link fence section is a critical choke point where multiple scientists converge. The red-colored container structure houses the 3 elite crates, the most valuable loot in the monument. The Laboratory accessed through the blue door represents the final major loot chamber before the spiral staircase exit.
The layout creates natural bottlenecks where scientists establish defensive positions. Understanding the flow from entrance through each checkpoint helps you coordinate team positioning or plan solo engagements effectively. The recycler is positioned on-site, allowing you to process unwanted items before the exit.
Enter at the main entrance and take the right door into the armory tunnel. Locate the fuse box and insert your fuse, which starts a timer. You have roughly 2-3 minutes to work through the puzzle sequence. This initial section is relatively calm but sets the pace for the entire run.
Move past the entrance and down the main tunnel corridor. Expect scientist activity in this area. Use cover and coordinate team fire if running with partners. The tunnel narrows as you approach the chain-link fence barrier.
The chain-link fence blocks your path and serves as a convergence point for multiple scientists. This section is the most dangerous encounter in the monument. Don't peek too long, use cover effectively, and suppress fire from teammates makes clearing much safer. Solo players should use audio cues to track scientist positions.
After clearing the fence section, use your green keycard on the Storage door to your left. Inside, find and flip the switch you discover. This unlocks the progression to the next sections. Backtrack to the tunnel intersection after collecting contents.
Head right toward the red-colored container structure. This holds 3 elite crates, the most valuable loot in the monument. Scientists actively defend this area, so expect direct engagement. The elite crates contain rare blueprints and high-tier weapons that justify the combat intensity.
Continue right into the next tunnel section and use your blue keycard on the Laboratory door. Once inside, locate the red door ahead. Push through to access the spiral staircase exit. This completes the puzzle sequence.
Ascend the spiral staircase leading to the monument exit. This area is defensible if scientists pursue too aggressively. Use the staircase to establish a defensive position while teammates catch up or extract ahead of you.
Scientists are the primary threat at Military Tunnels. You'll face approximately 15 total, armed with LR-300s for medium-range engagement, MP5s for close quarters, and SPAS-12s for shotgun damage. They coordinate well in groups and will actively hunt you if they detect your position. The chain-link fence section is particularly dangerous because multiple scientists converge there simultaneously.
The red container area spawns additional scientists who patrol and defend the elite loot. Two players can suppress while one loots, making the job significantly safer. Solo players should use audio cues to track scientist locations and position defensively before engagement. Never engage multiple scientists simultaneously if avoidable. Instead, eliminate threats one at a time using cover and positioning.
Scientists respawn on a 20-30 minute cycle. You can return for a second run without server resets resetting the monument. However, you'll face scientists again, so plan your timing accordingly and expect lower loot efficiency on repeat runs within the same cycle.
The elite crates at the red container are your high-value targets. These yield rare blueprints, high-tier weapons, and substantial scrap. The military crates scattered throughout the tunnels drop weapon attachments, ammunition, and specialized loot. Basic crates contribute less value but add to total collection.
Barrels scattered throughout contain recycler-worthy items like pipes and springs. For detailed loot table information, check the monument loot database. The 1 recycler on-site processes your unwanted items, saving you the trip back to base and keeping your inventory manageable for the exit.
The red keycard you may obtain from elite crates opens high-tier loot rooms at Airfield and other Tier 2 monuments. Understanding the full monument economy helps you plan efficient farm routes and progression timing.
Never enter without a flashlight, even if you think you know the layout. Low light turns encounters into ambushes. Bring extra ammunition and medical supplies because combat is constant throughout the run. Pre-plan your route with teammates to avoid confusion during scientist encounters and to coordinate firing positions.
Listen carefully for scientist audio cues. Their reload sounds and footsteps are audible from distance, letting you position defensively before engagement occurs. The spiral staircase exit is a good defensible position if scientists pursue too aggressively. Use it to stall while teammates reposition or extract with priority loot.
If you're struggling with scientists, consider gearing up higher or bringing additional players. Military Tunnels doesn't reward speedrunning. A methodical approach with solid positioning and communication beats rushing the monument and fumbling into ambushes. Focus on steady progress rather than maximum speed.
Military Tunnels is part of the Tier 3 monument cluster. Once you've beaten this, you're ready for Launch Site and other endgame content. Many players farm Military Tunnels repeatedly because the elite loot justifies the consistent risk.
The progression path typically flows from Tier 2 monuments like Airfield and Power Plant toward Military Tunnels as a capstone farming location. Check the monument loot tool to compare farming efficiency across monuments and plan your weekly rotation accordingly.