Set in and around the Boston area, Fallout 4 introduced the post-apocalyptic Commonwealth, along with the shadowy organization lurking beneath its surface. Its impossible to ignore the Synths roaming the wasteland, and the impact theyve had on the lives of the locals, as they play pivotal roles in the main plotline. However, there is also a more familiar Fallout enemy found throughout the Commonwealth with a horrifying link to the artificial creations.