Theatre Compound progression
Your base page shows a single compound scene image that advances when milestone buildings reach required levels. For first-build unlock order see the building tech tree. Mechanical building levels and per-building art bands are separate from the whole-base scene tier. Full design: docs/theatre-compound-building-progression.md
Compound scene tiers
Starter Camp
Default — lightly developed starter FOB (Command HQ level 1+)
/assets/base/compound-starter-camp.png
Established Outpost
Command HQ, Barracks, Warehouse, and Logistics Yard each at level 5+
/assets/base/compound-established-outpost.png
Operational FOB
HQ, Barracks, Logistics Yard at 10+; Training Yard 8+; Fuel Depot, Field Hospital, and Motor Pool built
/assets/base/compound-operational-fob.png
Hardened Base
HQ 15+; Perimeter Wall, Checkpoint, Watchtower, Communications Tower at 10+; Radar Mast and Special Ops Compound built
/assets/base/compound-hardened-base.png
Theatre Headquarters
HQ, Barracks, Logistics, Warehouse at 20+; Perimeter Wall, Checkpoint, Watchtower at 15+; Satellite Uplink, Drone Hangar, Helipad, and Special Ops built
/assets/base/compound-theatre-headquarters.png
Defence strength in combat
When your base is attacked, garrison unit defence is multiplied by total defence strength (%). Bonuses stack additively: garrison base + perimeter wall + gatehouse + watchtower + hardened bunker. At max tuning defaults, a Lv20 wall adds +120%.
- Garrison base: 100%
- Perimeter wall: +6% per level
- Gatehouse: +2.5% per level (access control)
- Watchtower: +3% per level (overwatch)
- Hardened bunker: +5% defence per level; shelters 20–70% of warehouse capacity from raids (see Raids & loot)
Staff can tune these values in Admin → World Config.
Building visuals at peak level
Each compound structure has six visual stages in its sprite set. Reference art below shows the fully upgraded (stage 6) appearance — the same images used on your base when viewing a building pad or detail page.

Command HQ
Central command node
Max Lv20

Communications Tower
Command & control
Max Lv20

Radar Mast
Threat detection
Max Lv15

Satellite Uplink
Strategic intelligence
Max Lv10

Barracks
Infantry training
Max Lv30

Training Yard
Operative recruitment
Max Lv20

Special Operations Compound
Elite unit training
Max Lv15

Field Hospital
Medical recovery
Max Lv20

Logistics Yard
Supply throughput
Max Lv25

Warehouse
Storage capacity
Max Lv30

Fuel Depot
Fuel reserves
Max Lv20

Resource Extraction Site
Local resource harvest
Max Lv30

Armoury
Weapons & munitions
Max Lv20

Vehicle Workshop
Vehicle maintenance
Max Lv20

Motor Pool
Vehicle capacity
Max Lv20

Drone Hangar
UAS operations
Max Lv15

Helipad
Air mobility
Max Lv10

Perimeter Wall
Compound perimeter
Max Lv20

Watchtower
Perimeter overwatch
Max Lv20

Gatehouse
Access control
Max Lv20

Hardened Bunker
Last-resort shelter
Max Lv10
Per-building art bands
Individual buildings map mechanical level to five visual bands (01, 05, 10, 15, 20) proportionally within each building's max level. A Barracks at level 30 uses the same top band as Command HQ at level 20, but the mechanical effects differ.