The Chosen One
The Chosen One eventually finds Vault 13, the supposed location of a GECK, devoid of the majority of its former human inhabitants and instead inhabited by intelligent Deathclaws. The Chosen One then returns to find their village captured by the deep state remnants of the United States government known as "The Enclave". The Enclave often terrorizes the inhabitants of continental United States with their supreme arsenal of advanced technology. The Chosen One, through various means, activates an ancient oil tanker and engages its autopilot, thus allowing them to reach the Enclave's main base on an offshore oil rig. It is revealed that the dwellers of Vault 13 were captured as well, to be used as test subjects for Forced Evolutionary Virus (FEV). Vault 13 was supposed to be closed for 200 years as part of a government experiment, making them perfect test subjects. The Enclave modified the Forced Evolutionary Virus into an airborne disease, designed to attack any living creatures with mutated DNA. With all genetic impurities removed, the Enclave (who remain protected from radiation) could take over. The Chosen One frees both their fellow villagers from Arroyo and the Vault 13 dwellers from Enclave control and subsequently destroys the Enclave's oil rig, killing Dick Richardson, the President of the United States, as well as a genetically modified Secret Service enforcer named Frank Horrigan. In the end, the inhabitants of Vault 13 and the Arroyo villagers create a new prosperous community with the help of the GECK.