Command, Control, Communication and Intelligence
CCCI stands for "Command, Control, Communication and Intelligence" and was suggested by ViFF, among others.
Enable CCCI Movement Restrictions: With this enabled, army units may not be tasked to move (via the MP) unless they are within the Control Radius of a friendly unit (that is in supply) that has designated Command, Control, Communication & Intelligence (CCCI) capability. Airbases and Resupply Points also act as local sources of CCCI. CCCI is allocated to unit types according to the "Command_Control" field in the Object_Specifications table. If this feature is enabled, CCCI units will be identifiable on the MP map by the characters "(CC)" prepended to their unit names in the mouseover tooltips