Rockets' Red Glare Main Story, The Railroad Quest
This quest will be triggered or can be aquired when you complete Precipice of War quest.
Related points of interest
Stages of "Rockets' Red Glare" quest
1. Fly to the Prydwen
The plan is to bluff our way past the Prydwen's air traffic control and then land our stolen vertibird on her flight deck. Once aboard I have to place explosives on her gas bags. Then get out alive.
2. Plant explosives (0/3)
We actually made it aboard the Prydwen. Now it's my job to place explosive charges on the Prydwen's gas bags. After that, I need to get back to our stolen vertibird and fly to a safe distance so we can remotely detonate it.
3. Escape the Prydwen
The explosives are placed, now I just need to make it back to the stolen vertibird so Tinker Tom can get us to a safe distance. Then we trigger the explosives and watch the Prydwen go up like a candle.
4. Talk to Desdemona
The Prydwen is no more. The Brotherhood of Steel's presence in the Commonwealth is effectively over. Now I just need to report back to Desdemona.
5. Quest completed
With the destruction of the Prydwen, there's nothing to stop the Railroad from launching a final attack on the Institute. This is our chance to save all the Synths.