As The Sentinels War turned against him, the invid Regent was in trouble, leading to an attack on the REF. However the rogue REF General Thomas Riley Edwards allied with him. After Edwards sprung his trap on Tirol with Inorganics, the Regent's flagship folded in. As the SDF-3 prepared to fire, one of Ghost Squadron's Shadow Fighters launched missiles at the bridge, critically damaging it and wounding Admiral Lisa Hayes. It would be a year before it was ready for action again.