Skyfire sat 3 meters away from the vault door controls, staring dumbly as though it were some technology he had never seen before, expecting something or some pony to jump out and show this as an illusion. As much as he wanted this to happen, it never did, he just couldn't believe that he accidentally found vault 15, one of the unknown number of bunkers unaffected by the war.
After what could have been anywhere from 10 seconds to 3 hours, Skyfire broke out of his stupor with a shake of his head. Having had enough of just staring at the control panel, Skyfire trots up to it and pushes a lever on top of it with his right, hell fire Armour clad, hoof. His action finishes with a beep followed by a red light turning green on the console, starting the opening mechanisms for the giant gear shaped vault door. With a "Thunk" and a "Clunk" sound, shortly followed by the ear piercing scream of metal grinding against metal, the vaults sealed door is pulled backwards and rolls sideways.
Bright light spills into the once dark, damp cave, almost blinding Skyfire with the rapid change. As the light fades to a bearable level, 3 armored ponies come into view, all 3 are earth ponies in combat Armour, armed with varmint rifles at their sides. They trot towards Skyfire, who is now drawing his customized Gauss rifle.
"who are you? from where do you hail? state rank and faction. refusal to comply will end in immediate execution." one on the ponies ask, unable to see their appearance through their armor.
"Gentlemen. I am Captain Skyfire, of the Pegasus enclave. Well, i used to be. Before i was sentenced to death for refusing to kill harmless foals. But, how did you know i am a soldier, without leaving the vault before?" Skyfire asked through the hell fire armors helmet.
"We have hacked into..." the guard that was speaking is quickly silenced when they are knocked to the ground by the guard next to them.
"We are sorry but that info is classified." The other 2 guards say at the same time, clearly scowling at the now injured guard.
"I wish to meet with your overseer. Or at least talk to them through radio." Skyfire declares, receiving nervous glances from the guards.
Nodding, the guards lead Skyfire over to a intercom on the wall and press a small button on the speakers frame with their muzzle. "Overseer, sir. An Enclave exile is here, he wishes to speak with you." the guard whispers, voice only now losing its conviction and revealing that this guard is a young mare, probably not been a guard for long.
"Ma`am, how long have you been in your vaults guard unit? You seem rather effective at disguising your voice. So, would you kindly take me to see your overseer?" Skyfire asks, placing great emphasis on the words "would you kindly".
"Y, yes. Right away sir!" she replies and hurriedly brings Skyfire to the overseers office via the maintenance tunnels that run through the bottom of this vault.