She appears as an enemy three times in the campaign. In her first appearance, Tasha attempts to hunt down Waylon, who is saved by the 12th Battalion. She then later attacks Davis, and defends when the 12th Battalion first attacks the Lazurian Army. She then joins the 12th Battalion after Brenner sacrifices himself so the 12th Battalion and the remnants of the Lazurian Army can escape. She appears as a playable CO once, and an ally once after that.