Pre-Heresy IW Icon

Pre-Heresy icon of the Iron Warriors Legion

The Thunderstrike Assault Gun, usually simply called a Thunderstrike, was a heavy, mobile artillery piece preferentially deployed by the Iron Warriors Space Marine Legion during the battles of the Great Crusade and the Horus Heresy.

A Thunderstrike was the preferred artillery piece of the Iron Warriors' elite Stor-Bezashk siege units.


  • Angel Exterminatus (Novel) by Graham McNeill
  • Raven's Flight (Short Story) by Gav Thorpe
Community content is available under CC-BY-SA unless otherwise noted.