Rockets' Red Glare

Rockets' Red Glare is a quest and achievement/trophy in Fallout 4.

Quick walkthrough
Step 1: Meet Tinker Tom outside Cambridge Police Station

Step 2: Kill everyone inside the Cambridge Police Station, you cannot continue until all hostiles are dead.

Step 3: Head up to the roof and defend the Vertibird while Tom gets it running.

Step 4: Ride the Vertibird to the Prydwen.

Step 5: Plant 3 bombs on the Prydwen's gas bags. These are located at the top of the Main Deck in a corridor, look for the red panels to plant the bombs on.

Step 6: Return to your vertibird and escape.

Step 7: Watch the fireworks

Step 8: Return to Desdemona

Bugs

 * Sometimes, after boarding the vertbird, it will fly off straight to the south-east without stop, bringing you off map. (proof)