These workers were equipped differently, with twin lobster-claws protruding from the torso of every unit. My first impression when I spotted them, charging our rear, was that they were built for harvesting of some kind. Probably, they foraged around the domes for metals or maybe even trees—although I had no idea what use the machines would have for wood. In any case they lacked guns of any kind, and they rushed close to attack. At least half my men were distracted by this flank attack. We fired as they charged from the tree line. Many of the enemy lobster-types didn’t make it to us, but those that did simply plucked men from the ground with their claws. They lifted my men into the air with one claw, then proceeded to snip off their limbs individually. With a final grinding effort, they crushed each victim’s helmet until the skull inside popped. I tore my eyes from that scene to watch the men charging the dome. In front of us, all around the far side of the crater’s rim, another force of big machines appeared.