UED security guard

UED security guards were marines employed by the United Earth Directorate's Science Corps.

History
Shortly after Infested Kerrigan defeated the United Earth Directorate forces on Korhal and retreated to Tarsonis, the UED responded with a counterattack, sending a pair of Slave Broods to attack Kerrigan's forces.

The UED used scientists to coordinate their zerg forces. Security guards were assigned to protect the engineers. However, Kerrigan's forces defeated them, destroying the Slave Brood forces and killing all the scientists.