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Security circuits

From Citadel Wiki

Protected zones are defended by ancient security circuits. When a daemon core detects unauthorized access, nearby gates lock, flight operations halt, and the system begins a staged response designed to contain the intrusion before it reaches critical infrastructure.

Suppression

Suppression units arrive first. Stationary MS-SA4 platforms and armored MS-CL80 walkers combine autocannons, missiles, shields, sensors, and electronic scramblers to break the initial attack, disable drones, and isolate targets that can be eliminated quickly.

Interception

Interception follows once the intruders are localized. Rail trappers close transit lines, MS-A4 and MS-AR1 drones attack from the air, and fast MS-P20 golems block retreat, destroy support equipment, cut supply lines, and strike the flanks or rear.

Emergency unit

A deep intrusion may trigger the emergency unit: superheavy MS-C11 platforms equipped with layered shields, active protection, mortars, precision missiles, massed autocannons, electronic warfare arrays, and high-power microwave weapons. Some lower-security zones lack this final line. Breachers never know that until escalation reaches it.

Lockdown

Lockdown is distributed between three daemon cores and an anti-air radar. If even one flying object remains tracked, the zone stays closed. Gates reopen only after all aircraft are destroyed or every control node is disabled, turning extraction into a second operation rather than a simple retreat.

Origin

Some security responses may be remnants of DAAT's quarantine against the Decay. A Breacher can survive every hostile crew in the chamber and still lose to a protocol written eons earlier for an enemy no human has identified. Every recovered route has two values: what lies behind it, and whether the machine now knows it has been opened.

Known units

Unit Stage Description
MS-SA4 Suppression Stationary platform
MS-CL80 Suppression Armored walker
MS-A4 Interception Drone, attacks from the air
MS-AR1 Interception Drone, attacks from the air
MS-P20 Interception Fast golem that blocks retreat and strikes the flanks or rear
MS-C11 Emergency Superheavy platform with layered shields and active protection