The Tyrant Siege Terminators embody the Iron Warriors' art of war made flesh and ceramite, Terminator-armoured legionaries bristling with the heavy weaponry needed to shatter a fortress from within its own breached walls. Where other Legions used Terminators as shock troops, the IV Legion turned them into walking siege-engines, each warrior laden with rockets, autocannon, and cyclone launchers calculated to collapse strongpoints and annihilate armour at close range.
Deployed once a breach had been forced, the Tyrant Siege Terminators advanced into the ruin of an enemy's defences and methodically dismantled whatever resistance remained, their fire disciplined and their advance implacable. They fought as their primarch taught: without haste, without mercy, and without the slightest regard for the enemy's will to survive. During the Heresy their grinding advance became a nightmare for loyalist defenders, who learned that once the Iron Warriors had breached a wall, the warriors who came through it could not be stopped by anything short of total destruction.
Order of battle
