C3 Command Unit

(Redirected from C3 Emergency Master)
C3 Command Unit

Intended for reconnaissance 'Mechs or vehicles, the C3 Command Unit, also known as C3 Master Computer, is the central hub of a C3 Network and allows linked units to share radar and targeting data on the lance or company levels.


Normally carried by the lance commander, the C3 Command Unit is the hub to which three C3 Slave Units on other friendly 'Mechs can connect. However C3 Command Units can also be linked in this manner to expand the network, the command units of each of lance commanders can be connected to a second separate command unit carried by the company command 'Mech/vehicle. Due to complexity required to coordinate C3 networks, they can not be expanded beyond company size, or multiple companies linked together, even with the addition of extra command vehicles. The limitations in unit size are part of the reason for the ComStar developed Improved C3 Computer.

As well as serving to share the linked lance/companies targeting data, the C3 Command Unit also duplicates the function of Target Acquisition Gear and can designate a target for Arrow IV homing missiles and Semi-Guided LRMs.

A C3 Command Unit is typically carried by a heavy or assault 'Mech due to its the larger size and weight, and its importance as the hub of a C3 network. Outright destruction or interruption by ECM of a command unit is quickest way to bring down the portion of the C3 network it controls.

The C3 system was introduced in the year 3050 by the Draconis Combine.[1]

C3 Command Unit is manufactured on the following planets:

Brand Planet Company
Kallon Sure-Shot C3-MU Nanking Kallon Industries
Tanadi Coordinator Hachiman Tanadi Computers

C3 Emergency Master[edit]

The Dragon's foes were targeting 'Mechs that mounted the C3 Master computer, rendering the entire network useless. To counteract this, the Dragon created the experimental C3 Emergency Master computer in 3071.[2] By stripping out the TAG functionality and exchanging longevity for capability, the engineers on the C3EM team created a device that could step in as a temporary backup system for a C3 network. Though it occupies twice as much space and weighs twice as much as a standard C3 Slave unit,[3] the C3EM can (briefly) keep a traditional C3 network running in the absence of a C3 Master computer.

The biggest drawback to the system is the tremendous wear and tear placed on the unit during its short life. After 60 seconds of use, the system processor is overloaded with data and shuts down.[2] Another drawback to the C3EM is the fact that once it enters "Master" mode, it cannot be deactivated. The C3EM will function as usual in a friendly ECM bubble, but a hostile ECM bubble will cause it to go into standby mode.[2]

The C3 Emergency Master system costs 2,800,000 C-Bills.[3]

C3 Boosted Master[edit]

Introduced by the Federated Suns in 3073, the C3 Boosted Master system was originally an experimental system that ignores all electronic warfare equipment, ECM suites, etc. Only the Angel ECM Suite can interfere with its signals.[2] The C3 Boosted Master can only be used with C3 Boosted Slave units; Standard C3 Slaves will not work.[4]

The additional hardware links and encryption equipment that allows the C3 Boosted Master to operate increased both the weight and bulk of the unit. The C3BM weighs 6 tons and occupies 6 critical hit slots. It also costs 3,000,000 C-Bills.[3]


  1. Tech Manual, pg. 209
  2. 2.0 2.1 2.2 2.3 Tactical Operations, p. 298
  3. 3.0 3.1 3.2 Tactical Operations, p. 405
  4. C3 Boosted, Standard C3, C3EM (Answered) posting in Errata forum of CBT.com