Infested command center

"What the hell did they do to that Command Center?"

- Marine or firebat encountering an infested command center on Mar Sara

Infested terran command centers are terran command centers that have been infested by the zerg.

Overview
If a command center is heavily damaged, a queen may enter it and saturate the structure with parasitic bio-toxins. Once infested, the command center's occupants can be turned into mindless suicide soldiers. The structure itself comes to be tangled by orange and green vines, with "sacs of messy proto-somethings" along the walls.

One of the first, if not the first sightings of these structures was spotted on Mar Sara and was promptly destroyed by a Mar Sara Colonial Militia force led by Marshal Jim Raynor, only for him and his men to be arrested by Alpha Squadron on the pretext of destroying Terran Confederacy property.

During the Brood War, Sarah Kerrigan ordered the infestation of several Kel-Morian Combine command centers to prepare for her assault on Korhal. During the Second Great War and End War, the Zerg Swarm continued to make use of infested command centers in a variety of capacities, from a structure to store waves of infested colonists, infested marines, and biomass to a center from which they could mine minerals.

StarCraft
Infested command centers are not built by. They are acquired by using a zerg 's Infest Command Center ability on a terran command center with 750 or less hit points. The queen temporarily disappears into the command center; when it reappears the structure is transformed into an infested command center.

Infested command centers retain the Lift Off ability. They also regenerate health like zerg structures; infested command centers do not burn down after reaching critical health levels in the same way that other terran structures do.

Infested command centers produce. Production is sequential like in other terran structures, and does not consume.

Infested command centers uses the infested terran portrait instead of the zerg racial icon.

StarCraft II
In the map editor, infested command centers normally look just like regular command centers, but are labelled "infestable infested command center". A tip notes that infested command centers "must be destroyed", indicating a player's command center could be infested under certain circumstances, requiring its destruction.

They do not produce any worker units. Instead, they produce infested terrans and infested marines at no cost (except a 2 second creation time) and aberrations for 6 seconds. These do not cost control. None of the three types of infested terrans have a limited lifespan.

Wings of Liberty
Infested command centers do not appear in the multiplayer game. A type of infested terran building, they could be seen several times in the Wings of Liberty campaign.

The ones present on Aiur in "Echoes of the Future", Haven in "Haven's Fall", and Char in "Gates of Hell" could also act as resource collecting depots; brought minerals and vespene to them.

Co-op Missions
Alexei Stukov can construct infested command centers in Co-op Missions. They serve as his central command structure and resource gathering point, much like normal command centers.