The Hive Mind is just as happy to hurl masses of heavy bio-organisms at a problem as it is millions of lesser 'gaunts, and Imperial forces know these living wrecking balls as Crusher Stampedes. This horrifying assemblage of teeth, claws, and bio-acid is directed by the warped mind of a Neurotyrant with two Neuroloid companions, and comprises a Screamer-Killer, a Tyrannofex that can instead be built as a Tervigon, a Haruspex that can also be built as an Exocrine, and a Maleceptor that you may choose to build as a Toxicrene.