Indoctrinated

Indoctrinated are people who have fallen under the control of Reaper Indoctrination.

At Saren's base on Virmire, where he was running experiments on Indoctrination and its effects on organic beings. Captain Kirrahe's STG regiment was assigned by the Council to investigate Saren, which eventually lead them to the base. Kirrahe lost half of his men investigating the base. However not all of Kirrahe's men were lost, Saren imprisoned some and ran experiments on them.

Tactics
Because Indoctrination has negative effects on organics ability to process information, Indoctrinated don't take cover, are armed only with pistols, and are easy to kill. Most will just charge at enemies attempting to kill them.