Mass Fusion Building

The Mass Fusion building is a location in the Commonwealth in Fallout 4.

Notable loot
Note: This magazine is inaccessible until finishing quests very late in the game, but you can get it beforehand with jetpack mod on power armor. Spoils of War
 * T-45 power armor worn by the Gunners Commander
 * Strength bobblehead on the head of the giant interior statue
 * Overdue book on a desk on the fourth floor. You have to go up to the fifth floor and go back down to reach it, another is on a desk on the reactor level.
 * Nuka Cola Quantum on the ground floor in the vending machine to the left of reception.
 * Mini nuke on the same floor as the bobblehead in the room to the north west.
 * Fusion core on a desk after jet packing through a hole in the wall at the very top of the elevator.
 * Tesla Science Magazine in the southern most room on the floor above where the power goes out.
 * Freefall Legs found at the top of the interior of the building, in an area only accessible using the jetpack power armor mod, coupled with clipping into the corners of the room to regain enough AP to climb higher.

Appearances
The Mass Fusion building only appears in Fallout 4.