Nova gasped and put a paw up to his mouth in astonishment. "My god you've done it Warren!" he said breathlessly as the massive metal door swung open to reveal the vault's mysterious contents. It was pitch black for just a second, and then all the lights came on at once, illuminating the chamber within. It wasn't actually as large as Nova had thought it would be. The roof of the room was curved, so the shape of the vault's interior was half of a cylinder on its side, like an old traffic tunnel. It was no more than 50 feet long. Its contents were even more surprising. Lined up on each side were 5 robots of some kind, each plugged in to a terminal. They were about as tall as an average person, apparently used two tank treads to move around, and had a massive sensor bank where the "head" would be as well as two types of guns for arms.
Nova's eyes widened as he approached the machines and ran a paw over their immaculate silver surfaces. "What the heck are these..." he wondered aloud as he walked behind one of the terminals, all of which had lit-up touch screens on them and a control panel with a joystick. "And why are they locked up in here, they look like they've never been used..." He pressed a button on the touch screen marked "main startup sequence." Immediately there was a series of whirring and clicking noises, and the robot in front of him detached itself from the terminal, spread its "limbs," and stood there like a dog awaiting command. "Gah!" Nova shouted as the thing unfolded itself from its docking station and simultaneously a panel opened in the side of the square block of the terminal facing him. Inside was a kind of helmet with a visor, which Nova picked up and stared at. It was clearly intended for human use only as it made no accommodations for his ears or muzzle, but he could see from the images being projected on the inside of the visor that it was meant as a means to remotely control the robot. He glanced at the control panel then and noticed an option labeled "operational method control," which he pressed, instantly deactivating the helmet and instead putting all the info on the screen in front of him. "Haha, that's better." He said as he examined the screen.
Several numbers and measurements were being shown that he didn't understand, but there was enough that he did to make him shiver with a mix of fear and excitement. Among the central targeting reticule, charge gauge, and sensor settings were weapon indicators: "MG: Ready" on the left and "RG: Ready" on the right. Glancing at the long, sleek contraption on the robot's right arm combined with "RG" confirmed a suspicion in Nova's mind: These combat bots were equipped with railguns. The existence of hypersonic projectile weaponry such as this was hinted at during the war, but had never been confirmed. The race to develop it successfully had been a mini cold war in itself, as the implications of it were tremendous. Ultimately it had actually been deemed a WMD, in an attempt to dissuade countries from researching it and introducing it to the already unparalleled conflict. Of course, the war reached apocalyptic proportions without the help of railguns, but that would explain the state of these bots. They were probably kept locked in here as a last resort, to be used only in desperate situations because there would be massive outcry if the public heard about them. Nova wondered if the military itself even knew if they were safe, or if he would be in danger of evisceration the moment he tried to fire the thing.
Taking a breath, Nova guided the machine off its station using the control panel and watched as it rumbled smoothly over the concrete floor. He saw through its camera eyes as it rolled through the vault door and into the main room. Suddenly overcome with a childish giddy excitement, the kind he might have experienced playing FPS video games as a child while controlling fictional robots like this one, Nova yelled out of the vault: "Hey guys! I know you can see already, but get your tails in here! This... this is something else!"