Space Marines: Venerable Dreadnought (48-32) Vallejo multi-meltas and heavy flamers that

multi-meltas and heavy flamers that bring their firepower in line with that of a battle tank

In this book

The Sanctus is a specialist assassin in your Genestealer Cults army

suggests a more ancient design influence

Space Marines: Venerable Dreadnought (48-32) Vallejo multi-meltas and heavy flamers thatStanding three times the height of a man, these towering war machines bear powerful weapons and are as lethal at range as in close assault. A chapter's Dreadnoughts are treasured relics, only awoken in great need. Encased inside every Dreadnought lies a mighty Space Marine hero, who has suffered grievous wounds in battle, saved only by his internment. Venerable Dreadnoughts bring their wisdom to the Chapter in times of peace, and immense battlefield