Despite the machine's large frame, its movements are incredibly nimble, and the head is protected in the back by what look like Pipe organs.
Placed near one of the Hell Gates on Earth, an entity parasitically attached itself to the gargantuan machine, finding itself a new body. Though enforced with an exceptional amount of security, a singular prototype nuclear-powered Arachno-Tank was taken by the demonic forces, to be used for their own will. UAC feared the worst when Hell took over UAC Earth Central Command's installation, it being home to some of the most advanced technology humanity has ever built.
UAC Demonic Entity Log: 012- Spider Mastermind