Siege crab

Crab is a superior form not only in nature: turns out it is efficient in combat as well. Callinectes, nicknamed "siege crab" by NMC personnel, is heavy-armored all-terrain walker with two main purposes. First - to clear the way of rubble for advancing troops, dig trenches and make other defensive structures. Second - to provide those troops with artillery fire with its 155mm howitzer. Six main legs provide substantial mobility to Callinectes on difficult terrain. Two giant manipulators...