Total War: WARHAMMER Wiki

Great Cannons is an Empire siege engine unit introduced in Total War: Warhammer. The Empire's standard, effective cannonry sends armour-piercing iron balls ploughing through enemy ranks with devastating aplomb.


The Great Cannons of the Imperial Gunnery School are the terror of the Empire's foes. Their thunderous fire sends iron balls hammering into the ranks of enemy warriors, each impact ploughing bloody furrows through tightly packed regiments. Even the mightiest creatures cannot ignore the power of a Great Cannon, as was ably demonstrated at the Siege of Middenheim, when Master Gunner Pumhart von Steyr decapitated a raging Dragon with a single well-placed shot.


  • Anti-Large: Anti-large units have an advantage against targets that are at least as large as a horse. This advantage can be a damage bonus against large targets or an attack that focuses on a very small area. However, some units are simply better against large targets because their attacks are slow and easy to dodge by skilled melee combatants.
  • Armour-Piercing Missiles: The damage of armour-piercing weapons mostly ignores the armour of the target, making them the ideal choice against heavily-armoured enemies. They are often heavier and attack at a slower rate though, making them less efficient against poorly-armoured targets.
  • Good Range: This unit has a larger range than most other units of the same class. This allows it to take out hostile missile units before they can come into firing range.


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The Great Cannon excels at dealing armor piercing damage at a high range. It has an easier time hitting large targets due to their size so enemy heavy cav, and monsters should be natural targets. That being said, they can still tear up armored infantry. They are quite accurate (not as accurate as the Dwarf cannon) so can be used to snipe or at least damage enemy Lords from afar.