[i][i]Intro to my new story. More to follow. I don't need to add a poll for this as your comments and criticism provide more than empty dots can.

In the event of a nuclear blast, the Overseer must be ready to seal the Vault within twenty minutes of a nearby fifteen-kiloton-warhead.
Not since the end of the Second World War had things ever seemed so perfect. Baseball bats lay strewn about the floor, their accompying mitts and balls lay somewhere in the cast-iron trunk. Several vault jumpsuits were set neatly across the chair.
Indeed, it is harder to close the Vault-Tec door than to open it.
Not since entrance into the steel cavern fifteen years ago had the class ever had so much fun. The graduation party was every resident’s happiest moment. Every year they would play one song on the holotape for each graduate. This year there had been almost one hundred graduates. The party lasted for more than seven hours.
Every Overseer must unhesitatingly perform his or her duty to ensure the Vault’s overall success.
Even his crush since the early days after the bombs fell had danced with him. She was still dating the Overseer’s son. Aside from the free Pre-war dresses there surely had to be no love between them.
Vault 94 has had the good fortune to recieve a G.E.C.K. which in due course will allow the Vault’s residents to thrive once the All-clear has been given by the Overseer.
Thoughts circled the slightly buzzed head of the Vault citizen. Sleep would soon overtake him. For quiet thoughts and memories there would also be a new tomorrow.

There's too many periods, so you should use comma's more often, and you should also try and space everything out.

I also had a hard time understanding what this is about, but I could just not be reading it correctly.

-Thanks for the feedback. I'll try to work it into this next bit.

Vault Security Center
August 10th, 2093

The black under his eyelids opened to the foggy blue light laid glossily on the metal desk.
"Mr. Adams? Mr. Adams, are you listening to me? He's been sleeping the whole time!"
"Huzznh? Whazzat?"
"Jesus, doc, we can't let this guy apply for an Officer position. He has an addiction to Chlorpromazine for his Vault Depressive Syndrome and his G.O.A.T. shelves him as a 4th tier Lab Technician."
"Beer, youz say beer?"
"I said tier, Mr. Adams. Doc, he's even drunk for his own application process. Clinic's probably a better place for him anyway."
The white-haired man peered down at the young man in the grungy Vault suit. "I think you're right, Joesph. Graduation hits everyone hard. He'll be better off alone, anyway."
"No no no. With all due respect, Mr. Adams is an exception. His studies show an extremely high intelligence level but his VDS marks him as a special case."
"Case? Oh you guyz found my stash in Mr. Handy's third limb?"
The man recieved the blank stares of his superiors. The short silence was followed by the interviewer's pudgy fist denting the desk. The new reflection of the light in the metal blinded the drunk, and he cascaded off his seat in a state of confusion.
"I can't take this anymore, sir. I want this, this absolute filth out of my office and into the Clinic. If he isn't fixed up for the next interview we're defaulting him to sanitation."
The meek doctor merely nodded. "I'll do as you ask, Commandant. I think we've given him just enough chances this time round and he should be detoxed in a few days."
The security commandant grabbed the doctor by the tie and pulled him close.
"It might be better if he doesn't come back at all, understand?"
The unfortunate man shook his head.
"In this Vault we have rules, Commandant. If we don't follow those rules than we might as well unseal the place and die of radiation. Just because the kid's [censored] up doesn't mean he's stupid or something, I know you technically outrank me but I'll be damned if I let you doom another Vault resident."
The offended man sat back in his chair, releasing the doctor.
"It's his last chance, y'hear? If that kid messes up one more time he's out of the Vault for good. Now get out of my sight."
The doc straightened up and looked downward at the commandant.
"Sir."
He rang for the strecher on the intercom and soon enough two medical trainees came and loaded up the young man. Underneath the seemingly unconcious eyelids was a fully awake and aware man. He knew of the intent of the commandant, sociopath as he was. In truth, the young man had never touched a beer, but by taking advantage of situations just as his G.O.A.T. had predicted him to allowed him to know fully what the Commandant had in store for everyone.

Interesting. Could you please replace put single spaces in between your dialogue to make less confusing, the wall of text really hurts my eyes. Also, a whole of dialogue and not much else can make it boring, but if you space it out, I will give a more accurate detailed review, deal?