As the months passed he decided to plan his escape. He researched what a post-apocalyptic America would be like in the library and he learned that most radiation is gone after 10 years. It had been 12 years since the bombs fell so he decided to risk it.
Then the day came when his escape would happen. He had planned everything. He had learned the guard shifts, the passcode for the Vault door (which had involved getting the Overseer drunk), where everyone would be and more. He also knew of the dangers outside of the Vault so he had stolen from the Armory a 10mm pistol with 120 rounds, and a Laser Rifle with 200 microfusion cells. He had also raided the Medical room for 20 Stimpaks and he had also taken some food from the kitchens. He was ready.
When noon came, he went up to a Vault fire alarm. He looked at the button that would activate it. This was the moment of truth, it was now or never. This button would decide what happened. He realized that he still had a chance to back out… but then he remembered Donny and the rest. He did not want to become like them. He hesitated then he reached out and pressed the button.
Almost immediately alarms went off all over the Vault and he heard people yelling. The Overseer came on the intercom and called for everyone to head to the Main Room. As people ran for the Main Room, he escaped.
As he ran, the Overseer watched from cameras and witnessed his plight. She of course knew that he had seen what the Vault had done to Donny so he was now a loose end who was trying to escape the Vault. And Vault-Tec restricted that, no one in Vault 72 was ever meant to leave. She smirked, now she could kill him. She activated the security bots.
He reached the Vault entrance room. He quickly found the terminal that opened the Vault blast door. He activated the terminal. CREAK. There were loud noises as the door opened; he heard large rumbles as the door opened. It slided inside the mountain where the Vault was hidden. He looked outside, as far as the eye could see he saw a barren wasteland devoid of life; his new home.
He stepped outside the Vault and looked around but was interrupted by the sounds of the Vault door closing again. It was done. He had escaped.
He gripped his laser rifle tightly and ventured out into the Wasteland ready for what came.