Warhammer 40k: Crusher Stampede

Should the Tyranids be faced with an especially formidable target, the Hive Mind may unleash what Imperial Strategos have termed a Crusher Stampede. The cores of these swarms comprise hulking monsters, led by some of the most physically imposing synapse beasts to emerge from the bowels of the hive ships. Supported by hulking walking tanks like the Tyrannofex or Exocrine, Crusher Stampedes smash through everything in their paths.