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By killing Darion, leader of the New Khans, they arranged for the Vault 15 squatters to voluntarily join the NCR.
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Some of their most important deeds took place in Shady Sands, once they entered NCR lands. After visiting New Reno, they became the parent of a child who would eventually become the feared and powerful leader of the Bishop crime family. In their travels further south, they exposed the Broken Hills' anti-mutant conspirators' attempt to rid the town of super mutants, thereby earning the loyalty and friendship of the sheriff, Marcus, who joined them on their quest. Their exploits brought excitement to the boring Klamath, they ruined Rose's unique cuisine in Modoc by shooting her deathclaw in the eye and earned the friendship and protection of John Cassidy.
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In the course of the Chosen One's journey, they changed the wasteland in many ways, both great and small. After completing their training, the Chosen One was sent out by the people of Arroyo to find a Garden of Eden Creation Kit, which was believed to have the power to make the failing village thrive once more. Part of these trials were drug sessions with Hakunin, with the final stage of the Chosen One's development being the Temple of Trials a trial the Chosen One's mother had also completed long ago. The Chosen One was trained from birth to become the tribe's champion, and, in the future, their elder. As the child of the village elder, the Chosen One is a member of the third generation of former Vault 13 dwellers living outside the Vault, similar to how their grandparent was the third generation to live in a Vault. The bloodline of the wasteland's most influential tribemember, extends all the way back to the Vault Dweller and their spouse, Pat.
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