Mark 28

The Mark 28 is a tactical nuclear warhead in Fallout 4. Liberty Prime uses them as one of its primary weapons.

Characteristics
Originally intended for being deployed by United States Air Force bomber aircraft in large numbers, the Mark 28 is much smaller than the high-yield C23 atomic bombs stored in Fort Constantine near Washington, D.C. both in size and destructive capabilities, yet considerably larger and more powerful than the mini nukes used by the M42 Fat Man tactical nuclear catapult.

During the Sino-American War a large stockpile of Mark 28 was stored in the bunkers of the Sentinel site southwest of Boston where military engineers and scientists were attempting to adapt the bombs for use as missile warheads in ICBMs. Their experiments yielded mixed results and were ultimately cut short when the Great War broke out and a single strategic nuclear bomb impacted not far from the bunker complex, devastating the entire region and turning it into the Glowing Sea. Still many Mark 28 remain intact even in 2287, safely encapsulated in sturdy metal crates and kept out of reach of mankind for over two centuries by the natural dangers of the Glowing Sea. However, this changed quite recently when members of the Church of the Children of Atom gained entrance to the weapon storage facilities in an attempt to use the warheads for their own ends, while at the same time the Brotherhood of Steel arrived in the Commonwealth and tasked one of their most trusted Knights with securing the Mark 28 for their war against the Institute.