Zerg Queens have the ability to infest severely damaged Terran Command Centers, saturating them with parasitic bio-toxins. Once the Command Center is fully infested, its previous occupants can be turned into mindless suicide soldiers capable of mass destruction known as the Infested Terrans.

The infested victims of the Zerg are completely consumed by the will of the Overmind. Their bodies twisted and mutated to produce extremely unstable chemicals, infested soldiers long only to find the Swarm's enemies and destroy them by detonating their own bodies in a cloud of toxic fluid. As with other Zerg ground units, an Infested Terran also has the ability to Burrow.

The Infested Terrans have the capability to inflict up to 500 points of explosive splash damage to any unit or structure. To reach their full destructive potential, an Infested Terran must be commanded to target a specific unit or structure, but they can also be commanded to target an area within the proximity of several units or structures. The splash damage from the exploding Infested Terran will cause massive damage to all nearby targets.

Although their kamikaze attacks can cause quite a bit of damage, they must be able to reach their targets in order to inflict harm. Should they be destroyed en route before their internal toxins can properly detonate, the Infested Terrans simply die without inflicting any of the damage they normally unleash. To avoid wasting the resources spent to create them, Infested Terrans should be used as stealthily as possible to gain access to critical enemy structures. Overlords can transport 8 of them at a time, and with a successful insertion into the enemy's rear lines an Overlord full of Infested Terran cargo can quickly devastate the heart of an enemy's base.

Infested Terrans have no anti-air attack capability and therefore require either a diversion to be successful or an escort of some sort to provide protection during their attack runs. The Infested Terrans need to explode right next to the target makes one particularly vulnerable to ranged attacks and if an enemy ranged attack force is large enough, Infested Terrans will have a very difficult time doing any harm.

Carapace - Each upgrade adds +1 to the Carapace for a total of +3 when fully upgraded.

Burrow - Use the Burrow ability to keep Infested terrans  safe while  waiting for the right moment. Burrow also comes in handy for setting up ambushes .