The glitch occurs when the end-match dropship departs from the arena. If a team manages to get the dropship down to a fraction of its health, they can then use satchel charges to detonate it while it's departing into space.
While it's possible to destroy the dropship as it leaves the map, doing so in this way will also kick each player from the server.
The second installment of Titanfall Mythbusters (following last week's episode) also uncovers some less buggy truths in the highly acclaimed Respawn shooter.
Check out the video below: