Military Tunnels
A large underground monument with elite loot, heavy scientist patrols, and a multi-step Red Card puzzle.

Overview #
Military Tunnels is a large underground monument made up of interconnected corridors, industrial rooms, and laboratory sections. From the surface it appears relatively small, but most of the monument is located below ground inside a tunnel network.
The site is heavily patrolled by scientists and contains high-tier loot, including elite crates and a Red Card puzzle room.
There are multiple surface entrances that lead into the same underground system.
Layout #
The monument is best understood as a descending path into a central tunnel network.
Key areas include:
- Surface Entrances: Multiple entry points leading into the main ramp.
- Main Ramp: Sloped access into the underground section.
- Fuse Room: Located near the top of the monument and required for the puzzle.
- Rocket Room: Central landmark inside the tunnels.
- Walkway Section: Elevated metal path overlooking part of the tunnel floor.
- Elite Crate Area: Located deeper inside the tunnel network.
- Green Card Room (Storage): Required step in the puzzle sequence.
- Blue Card Room (Laboratory): Precedes the Red Card room.
- Red Card Room: Final secured loot room at the end of the monument.
- Recycler: Located within the monument complex.
The tunnels branch at several points, with one side leading toward elite crates and the puzzle route.
Loot #
Military Tunnels typically contains:
- Multiple military crates
- Elite crates
- Brown and component crates
- Scientist drops
- Red Card room rewards
Loot density increases deeper into the tunnel system.
Red Card Puzzle #
To complete the Red Card puzzle, you will need:
- 1 Electrical Fuse
- 1 Green Card
- 1 Blue Card
Puzzle sequence:
- Insert a fuse in the Fuse Room and activate the timer.
- Swipe a Green Card at the Storage room near the Rocket and activate the switch inside.
- Proceed to the Laboratory and swipe a Blue Card.
- Clear the room and activate the timer beneath the Red Card access.
- Enter the Red Card room once unlocked and clear remaining enemies.
The Red Card room contains high-tier crate spawns and valuable loot.
Military Tunnels is a large underground monument featuring multiple entrances, elite crate spawns, scientist patrols, and a multi-step Red Card puzzle at the deepest section of the tunnels.