When the world ends and humanity stands at the precipice of extinction, good people are needed more than ever. Such describes your character's father, James, in Fallout 3. After seemingly abandoning you and Vault 101, you set out on a quest to find him within the ruins of Washington D.C. Upon finding your father, you discover that he left to resurrect Project Purity and create clean drinking water for the Capital Wasteland. Unfortunately, the Enclave arrives to seize control, but instead of handing it over, James kills himself and the Enclave soldiers with lethal amounts of radiation. https://www.youtube.com/watch?v=dJMruW1BMFY It takes real courage and determination to set aside the love for your child and focus on the greater good, and that is exactly what James did. He tried to heal the world in whatever small way he could against the odds, and ended up giving his life for his convictions and the security of a future for his son.