The infantry was still scrambling to return to safety and the light mecha of the reinforcements were still powering up when the first shells landed near the mine entrance. Only a few at first, but there were more and more with every passing second.
From the radar scans, it appeared that the entire front line of the Narsian assault had stopped in their tracks and set up artillery emplacements. It was an excellent strategy, but the Kepler Heavy Mecha had sophisticated enough targeting systems to roughly estimate where the shells were coming from.