It's possible for the Railroad a loose collection of runaway Synths, scientists, idealists and other wastelanders operating out of a few safehouses and the Minutemen a volunteer Wastelander militia army kitted out with MacGyvered Schizo Tech laser muskets to annihilate both factions. The Eastern Brotherhood of Steel are arguably the most powerful faction in the whole of the US (save possibly the NCR), with mighty Knights in Powered Armor, a virtual monopoly on advanced weaponry and other technology and access to a Humongous Mecha. Goliath: The Institute are the most powerful faction in Post-War New England, with armies of Synths, vast resources, and ties to the Pre-War USA. In contrast, Radroaches are introduced in Fallout 4 as scavengers in the ruins of Vault 111 who can inflict radiation poisoning with their bites, and the Sole Survivor reacts with genuine horror and revulsion upon seeing them for the first time.
The full horror of extracting live brains from unwilling subjects and experimenting on them while they were still conscious is revealed to the player. The notes left being in their production facility reveal how truly immoral the military was in creating them. Sawyer's tabletop RPG), and it's extremely disturbing.
Now they've been given an entire backstory to their creation (all of which is actually based on history given out by Fallout 1 lead designer Chris Taylor in an old interview, plus the info given in J.E.
In previous games, they were just another robot, kind of ridiculous and silly, but nothing particularly special compared to a Sentry Bot or Mr.
In Fallout 4, however, the Children of Atom are largely presented as a legitimately terrifying apocalyptic cult straight out of an H.P.