Mortars  

More squat than Great Cannons, Mortars lob shells high into the air, which then fall amongst the enemy. Instead of solid shot, Mortars fire hollow shells topped with a fizzing fuse and filled with black powder. Shells explode in the heart of their targets, sending fragments of burning iron scything through enemy formations and killing whole swathes of warriors at once.

Warhammer Online Wikibase™