The WF Bellerophon (Patreon)

The WF Bellepheron was stolen from the Dresden shipyard by John Martz and his accomplices. This theft led to a tightening of security at all UN shipyards and increased security vetting of staff. The Bellerophon was flown straight through the roof of the assembly building in Dresden, causing a substantial amount of damage. The shockwave from the spaceships exit, at high speed, through the atmosphere caused significantly more. Survivors, of which there were none within 3km, said it was like an asteroid strike.

Nothing was ever seen of the Bellerophon again. It's postulated, although no debris was ever found, that its high speed getaway resulted in its destruction before it had even left Earth.