Bunkers

[BUILDING_DOSSIER // C03] // URBAN CITADEL DEFENSE NETWORK

Underground Bunkers

Single-tier crossing infrastructure designed to open aquatic transit routes for ground forces. Underground Bunkers reduce embarkation and airlift duration by 5%, require at least 40% structural health to function, and are limited to one structure per province coordinate.

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DossierBLDG-A06
TypeDefensive Fortress
Max TierLevel 5
Max Damage Mitigation-82%
Max City Morale+50%
VisibilityHidden From Hostiles
Underground Bunkers
Max LevelLevel 5
Max Mitigation-82%
Max Structural HP125 HP
Max Maintenance$140 / Day
[OPERATIONAL_BLUEPRINT]

Tactical Blueprint

Underground Bunkers are urban fortifications built to reduce incoming damage to garrisoned units, increase city morale and protect other city structures. The supplied dossier presents them as a defensive layer for frontline bottlenecks and high-value industrial cities.

Camouflage matrix: the supplied page states that bunkers are never revealed on the global theater map to hostile commanders, keeping the true fortification level hidden until combat begins.

[PREREQUISITES_MATRIX]

Requirements Matrix

  • No external research requirement is listed.
  • No prerequisite infrastructure tree is listed.
  • Level 1 can be initialized from Day 1 in urban sectors.
  • Higher bunker tiers protect increasingly higher-level city structures and population levels.

Upgrade Matrix // Underground Bunkers Garrison

Level 1 // Underground Bunkers
09:00:00
Garrison Damage-33%
City Morale+5%
Structural Health20 HP
Daily Maintenance$100
Structure ProtectionUp To Level 1
Population ProtectionUp To Level 5
Deployment: 500 Supplies · 500 Components · 750 Fuel · $2,000
Level 2 // Underground Bunkers
12:00:00
Garrison Damage-43%
City Morale+10%
Structural Health40 HP
Daily Maintenance$110
Structure ProtectionUp To Level 2
Population ProtectionUp To Level 6
Deployment: 750 Supplies · 750 Components · 1,000 Fuel · $3,500
Level 3 // Underground Bunkers
16:00:00
Garrison Damage-56%
City Morale+20%
Structural Health75 HP
Daily Maintenance$120
Structure ProtectionUp To Level 3
Population ProtectionUp To Level 8
Deployment: 1,000 Supplies · 1,000 Components · 1,250 Fuel · $5,000
Level 4 // Underground Bunkers
26:00:00
Garrison Damage-68%
City Morale+35%
Structural Health100 HP
Daily Maintenance$130
Structure ProtectionUp To Level 4
Population ProtectionUp To Level 10
Deployment: 1,250 Supplies · 1,250 Components · 1,500 Fuel · $6,500
Level 5 // Underground Bunkers [MAX LEVEL]
36:00:00
Garrison Damage-82% MAX
City Morale+50%
Structural Health125 HP
Daily Maintenance$140
Structure ProtectionUp To Level 5
Population ProtectionUp To Level 10
Deployment: 1,500 Supplies · 1,500 Components · 1,750 Fuel · $8,000

Strategic Intelligence // Citadel Doctrine

Hidden Fortification

The supplied dossier states that bunker levels remain hidden from hostile commanders on the global theater map until an active assault reveals the defensive effect.

Layered Protection

Each tier increases protection for alternative city structures, while population protection scales from Level 5 at Bunker L1 to Level 10 at Bunker L4-L5.

Citadel Tier

The supplied tactical note describes Tier 5 as absorbing 82% of incoming orbital, ballistic or conventional payload damage while protecting the garrison and adjacent infrastructure.

[DATABASE_CROSS_LINK_SYSTEM] // 19 STRUCTURES

Building Network

Arms Industry→ Army Base→ Air Base→ Naval Base→ Recruiting Office→ BunkersCURRENT Hospital→ Secret Lab→ Annex City→ Combat Outpost→ Mercenary Outpost→ Local Industry→ Field Hospital→ Airfield→ Pontons→ Military Logistics→ Coastal Battery→ Observation Station→ Air Defense→
[FORTIFICATION_SCALING]

Five-Tier Citadel Network

Bunker progression becomes extremely strong at the upper tiers: garrison damage mitigation rises from -33% to -82%, morale from +5% to +50%, and structural health from 20 to 125 HP while the protected infrastructure ceiling rises with every level.

[DATABASE_RETURN]

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