The Shredder, like so much Hive technology, appears to be an arcane joining of uncharted sciences that verge on magic. It has no discernable mechanism. But in the hands of a Hive warrior, it generates bolts of Void fire.
This devastating Arc weapon is said to contain a shard of some dead celestial body. Lobbing bolts of rotting starfire, it is both a ruinous tactical weapon and an instrument of siege.
Carved of fossilized bone and hell-forged metal, dulled by centuries of slaughter and execution, the Cleaver is the terrible weapon of a Hive Knight. Despite their mass, they swing easily, as if the sword were aware of its action and eager to tear into the Light.
Tomb Ships are the Hive equivalent of troop carriers, though the term can only be applied loosely. They glide from point to point through ominous portals, wounds cut into the flesh of space.
These ever-watchful sentinels are believed, in some circles, to serve as the eyes of the Hive's innermost covens, allowing powerful Wizards and Knights to watch over their domains. Others believe Shriekers are nothing more than weapons meant to guard Hive ritual sites.
There is nothing living to the Shrieker, but neither are they mechanical constructs in a classical sense. They seem to be dead mass, animated by the arcane will of the Hive. When a Shrieker is broken, its Void charge rips free of the hull to seek vengeance.