Hydra - Notable Users of the Hydra: 6th Cadian Armoured Regiment - The 6th Cadian Armoured Regiment made extensive usage of the Hydra during the defence of the planet Betalis III against the Asuryani of Craftworld Mymeara.74th Cadian Armoured Regiment142nd Cadian Armoured Regiment1652nd Cadian Armoured Regiment - Regardless of their crews' attitudes or affectations, when Hydras roll into battle they can make all the difference to an Astra Militarum army. On Sarentos III, during the Battle of the Sandsea, the Cadian 1652nd Armoured were tasked with breaking the Necron line. Roaring across the dunes, the Leman Russ Tank squadrons of the 1652nd directed a withering rain of fire into their deathless foes. Great geysers of crimson sand were blown high into the air as the Necron line disintegrated before the tankers' armoured charge. Then came the Doom Scythes. Screaming over the battlefield on howling repulsor-jets, several wings of the ominous alien aircraft began to strafe the Imperial tanks with the glowing beams of their death rays. Flames billowed and black smoke gouted forth as first one Leman Russ and then another exploded. Though well prepared and outfitted for ground warfare, the Cadians were fighting without the military support of the aerial formations of the Aeronautica Imperialis, meaning they had no aircraft of their own to intercept this threat in the sky. For a perilous moment it appeared as though the 1652nd would be hurled back in disarray -- but their commander had issued his own call for reinforcements. Barrelling over the crest of a nearby dune came three Hydras, tracks churning spumes of sand in their wake. The flak tanks marked their speeding targets and opened fire, filling the sky with fury. One after another, the Necron Attack Craft were riddled with holes. Driven by eldritch technology, the living metal of the ancient xenos flyers began to writhe, moving to fill in the gaping rents. Yet no matter how fast the puncture wounds were resealed, the Hydras' quad Autocannons continued to savage their targets. Flurries of sparks and crackling green lightning wreathed the hulls of the Doom Scythes as they plummeted to the dunes below, tumbling end over end and exploding with enormous force. As the last of the enemy aircraft turned tail and fled, the surviving tanks of the 1652nd pushed forward again, their route to victory now covered by the watchful guns of the Hydras.2nd Brimlock Regiment, "The Sky Wardens" - The 2nd Brimlock Regiment depended upon the Hydra during the defence of Bastion 312 against rebel drop forces, and acquired a confirmed kill ratio of 99,999 to 1.8th Valhallan Armoured Regiment - The 8th Valhallan Armoured Regiment made use of the Hydra during the Sallan's World Offensive.28th Valhallan Armoured Regiment - The 28th Valhallan Armoured Regiment was stationed on the planet Betalis IV and made use of the Hydra against Eldar air support.12th Valhallan Field Artillery - The 12th Valhallan Field Artillery maintained a battery of Hydras to protect its primary batteries of Earthshaker Cannons. Notably, one of these Hydras saved the life of Commissar Ciaphas Cain, future Hero of the Imperium, by slaying a Tyranid Hive Tyrant that was mere solar seconds away from devouring him.87th Armageddon Steel Legion Regiment46th Palladius Armoured Regiment2nd Phyressian Armoured Regiment8th Pardus Armoured Regiment