How to unlock: listen to the recording from Trinity Tower radio in the Center of Boston and reach the source of the signal (M6,7)
- Investigate radio broadcast
- Unlock Cage
- Get Rex to Safety
- Talk to Rex Goodman
Get to the top of Trinity Tower
After listening to Trinity Tower radio signal which you can catch in central Boston (east from Diamond City), you will learn about a location with the same name. You must reach it. The building is swarming with supermutants and hounds on low level. First get to the first floor and drive up using the elevator.
Use the stairs and get through the collapsed floors to the highest floor where you will have to fight another miniboss (supermutant) with upgraded minigun. Only after defeating him you can search the large ammunition chest where you will also find a key to the cell. The cell is few meters further. Inside it there is a human and a supermutant imprisoned.
Help Rex in escaping from the tower
In order to escape the location, you can together use the elevator on the wall of the building. Follow Rex. When you will be driving down, on further floors another mutants which you must eliminate will appear. Once you reach the entrance of the building, the quest will end.
Quest rewards: experience, Rex's suit, companion: supermutant Strong