"Understood." Lead Commander Grieves received word that they are going to do the last phase to clear the Metal Ogres once and for all. Some of the soldiers had no idea what was to be done but there were some commanders briefed on it.
They quickly relayed the information to the other soldiers and they understood what was coming. It was actually a sort of expendable cage where oxygen would later be removed within the area. Now that the monsters were trapped within the construction materials, both injured or killed, this was the best time to finish it up.
Putting a cage around the affected area, would secure the area remove the oxygen within the area, and suffocate any of the surviving Metal Ogres within the area. This was to prevent the loss of any other soldiers and Mechanoids attempting to remove the debris and get killed from a desperate attack.