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Military Tunnels Complete Guide

Military Tunnels is a high-tier underground monument packed with scientists, elite crates, and complex puzzles. This comprehensive guide covers both puzzle solutions, scientist combat strategies, and optimal loot routes for maximum efficiency.

📖 12 min🎯 Advanced players🔄 Updated June 2025

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Requirements & Preparation

Puzzle Requirements

  • Blue Card Access:
    • • 1 Blue Keycard
    • • 1 Electric Fuse
    • • Optional: Green card for shortcuts
  • Red Card Access:
    • • 1 Red Keycard
    • • 1 Electric Fuse (second)
    • • Blue puzzle completed

Combat Preparation

  • Radiation: Hazmat suit required (25+ rads)
  • Weapons: SAR/AK minimum, 200+ ammo
  • Medical: 20+ bandages, 10+ syringes
  • Scientists: 8-12 throughout tunnels

Critical Warnings

  • • Scientists have 150 HP and good aim - never underestimate them
  • • Radiation zones are deadly without protection
  • • Timer puzzles require speed - practice the route
  • • Multiple entry/exit points - watch for ambushes
  • • Scientists respawn after 20-30 minutes

Monument Layout

Tunnel System Overview

Main Areas

  • • Surface entrance (train tracks)
  • • Initial descent tunnels
  • • Laboratory section
  • • Storage areas
  • • Elite loot rooms
  • • Emergency exit tunnels

Key Features

  • • Multiple vertical levels
  • • Interconnected passages
  • • Scientist spawn points
  • • Radiation hotspots
  • • Timer-based doors
  • • Hidden loot alcoves

Navigation Tips

  • • Follow the yellow pipes for main routes
  • • Red lights indicate radiation zones
  • • Green lights mark safe areas
  • • Use wall signs for orientation
  • • Emergency exits have ladder symbols

Scientist Combat Guide

Scientist Behavior & Stats

Scientist Stats

  • • Health: 150 HP
  • • Weapons: MP5A4, SPAS-12
  • • Accuracy: High (60-80%)
  • • Detection range: 40 meters
  • • Reaction time: 0.5-1 second

Combat Behavior

  • • Take cover when shot
  • • Strafe while shooting
  • • Call for backup
  • • Throw grenades (rare)
  • • Pursue through tunnels

Combat Tips

  • • Peek corners carefully - scientists pre-fire
  • • Use the tunnel system for cover
  • • Headshots deal 2x damage
  • • Scientists can't heal - chip damage works
  • • Clear systematically - don't rush

Scientist Locations

  1. 1.
    Entrance Guards (2-3): First room after descent
  2. 2.
    Laboratory Scientists (3-4): Blue card puzzle area
  3. 3.
    Elite Guards (2-3): Red card room entrance
  4. 4.
    Roaming Patrols (1-2): Throughout tunnels

Blue Card Puzzle Walkthrough

Timer Puzzle Solution

  1. 1

    Enter and Clear Initial Area

    Descend into the tunnels and clear the first 2-3 scientists. The entrance room often has basic crates and barrels.
    Tip: Use the doorway for cover when engaging entrance guards.
  2. 2

    Locate First Fuse Box

    Follow the main tunnel to the laboratory section. The fuse box is on the wall near the timer switch.
  3. 3

    Insert Fuse and Start Timer

    Place your electric fuse and flip the switch. You now have approximately 2 minutes to reach the blue door.
    Warning: The timer is tight! Know your route before starting.
  4. 4

    Sprint to Blue Door

    Run through the laboratory, past the scientists (you can fight them after), and reach the blue card reader before time expires.
    Tip: Route: Main tunnel → Left at fork → Through lab → Blue door on right
  5. 5

    Loot Blue Room

    Inside the blue room you'll find: 2-3 Military crates, 1 possible Elite crate, Medical supplies, Component boxes.
Note: Speed Run Tip: You can skip fighting scientists on the timer run, then clear them afterwards for their loot.

Red Card Puzzle Walkthrough

Elite Access Route

  1. 1

    Clear Laboratory Section

    After completing the blue puzzle, systematically clear all scientists in the laboratory area. They guard the path to the red room.
  2. 2

    Find Second Fuse Box

    The second fuse box is deeper in the tunnels, past the laboratory. Look for red lighting and warning signs.
    Tip: Location: Follow the main path past blue room, down one level
  3. 3

    Power Red Card Door

    Insert your second fuse and activate the power. Unlike the blue puzzle, this has no timer.
  4. 4

    Clear Elite Guards

    2-3 scientists guard the red card door. They often have better positioning, so approach carefully.
    Warning: These scientists sometimes have better gear and accuracy.
  5. 5

    Access Elite Loot Room

    Swipe your red card to enter the elite loot room containing: 3-4 Elite crates (30-min respawn), 2 Military crates, Medical supplies, High-tier components.
    Warning: These crates have the best loot in the game - AKs, bolt actions, C4, and high-tier armor.

Loot Locations & Spawns

Crate Distribution

  • Elite Crates: 3-4 in red room
  • Military Crates: 5-7 total
  • Regular Crates: 10-15 throughout
  • Medical Crates: 3-4 locations

Scientist Loot

  • Weapons: MP5A4, SPAS-12
  • Ammo: Pistol/shotgun shells
  • Medical: Bandages, syringes
  • Cards: Green/blue keycards (rare)

Hidden Loot Spots

  1. 1. Maintenance tunnels: Often have overlooked barrels
  2. 2. Side passages: Component boxes spawn here
  3. 3. Behind pipes: Medical crates hidden in alcoves
  4. 4. Upper platforms: Military crates on catwalks
  5. 5. Emergency exits: Regular crates near ladders

Advanced Strategies

Solo Strategies

  • Use silencers to avoid alerting all scientists
  • Clear methodically - rushing leads to death
  • Use compound bow for silent scientist kills
  • Bring extra meds - no teammate to revive

Group Tactics

  • One person runs timer, others clear
  • Post guards at entrance for counters
  • Coordinate crossfire on scientists
  • Split loot for faster extraction

Efficiency Tips

  • • Learn scientist spawn locations to pre-aim
  • • Memorize the timer route - practice offline
  • • Bring both cards to run both puzzles
  • • Store backup gear in nearby base
  • • Time runs when server pop is low

Common Mistakes

  • Underestimating scientists: They hit hard and accurately
  • Poor timer management: Know the route before starting
  • Insufficient supplies: Bring extra everything
  • Getting lost: Follow main paths and pipes

Quick Reference Card

Requirements

  • • Blue + Red Card
  • • 2 Electric Fuses
  • • Hazmat suit
  • • 200+ ammo
  • • 20+ meds

Expected Loot

  • • 3-4 Elite crates
  • • 5-7 Military crates
  • • 8-12 Scientist loot
  • • Components galore

Time Investment

  • • Full clear: 15-20 min
  • • Blue only: 8-10 min
  • • Red room: +5 min
  • • Respawn: 30 min

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