Another ridiculous but admittedly awesome weapon from the Fallout series is the Fat Man nuclear bomb launcher ... variant fires six mini-nukes in a cluster munition-like blast.

Simply calling it a "powerful explosive" might be understating things, though, as this is basically a mini-nuke along the lines of what you might see in a Fallout game. The Ultimatum is indeed a ...

Weisskopf, professor of Physics at M.I.T., said that the nations of the world should strike at the heart of the "fallout problem" by attempting to halt nuclear tests on a world-wide basis.