The Shredder Bolt, like the ballista, functions similarly to a crossbow. The Shredder Bolt is an Orcish modification of the standard ballista, which is primarily deployed at long ranges against other units. A dark enchantment placed on each javelin amplifies the lethalness of the Shredder Bolt.
Because of their heavy wooden construction, they are slow to move from place to place and not near as sturdy as most siege machines.