Mogrok - Klaw of Mork: Mogrok had devised a cunning superweapon to utilise against the humies'. He had his Meks construct an enormous Tracktor Kannon called "Da Klaw of Mork." When the gathered horde inquired as to what the weapon was for, Mogrok pointed a gnarled green finger at the sky, pointing towards the heavens at a large frozen comet swathed in clouds of ice and rock.The Big Mek flicked the switches and yanked levers on his huge Traktor Kannon's control panel bringing the weapon online. Shaking and sputtering, the contraption's engines sprang to life, the cables leading to the Klaw arcing with jolts of greenish energy. Even as they watched, a flickering green beam reached out from the Klaw and washed around the comet.With painful slowness the satellite started to swell in size. Each moment, the beam spitting from Mogrok's Klaw drew it a little closer to Alaric Prime. The Big Mek intended to bring the massive comet down on top of Sacred Mountain for a start. Mogrok figured that by bringing down the great comet down into the fight, it would blow up everything that wasn't under a protective force field.Having identified the source of the strange tractor beam that was drawing the Frozen Comet ever closer, the Tempestus Scions under Tempestor Prime Salem Whitlock made speed to their rustship target. Attacking under cover of night, they mounted a full-throttle assault into the heart of the Ork base, their mission to disable its force fields and destroy the massive tractor beam.Taking the Orks completely by surprise, the Tempestus Scions blasted their way into the tower's lower level. Through the smoke and chaos the Imperials pushed inside the teetering structure, Hot-shot Lasgun fire scything down anything which moved. Even though none of the Orks had any idea where their attackers had come from, they knew a fight when they heard one.Mobs poured in from every direction, drawn by the sound of combat. The sentry Orks inside the tower fired their Shootas wildly in the confined space, solid rounds blowing holes in the rusting walls or ricocheting off in random directions. Dagogg the Mek had been tinkering with the guns at the top of the tower when the first Scion charged over the perimeter wall below, gunning down the closest cluster of Grots with a salvo of red laser blasts.Growling, the Mek manned an artillery piece of his own invention, kicking protesting Grots out of the way. With a whine and pop the big gun grabbed one of the humies, flinging him into the air and squishing him like a bug.No sooner had the corpse fallen than half a dozen took his place, fanning out across the lower gun deck. Under the lash of Grabber, the Grots turned their guns on the Tempestus Scions and opened fire. The tower lit up with the flash of Zzap Guns and the boom of Kannons. At such close range, most of the shots went wide, but another Scion was mashed into the deck by a lucky hit from a Bubble Chukka's ball of force.In the bowels of the tower, Tempestor Prime Whitlock fought his way into the generator room, fending off wild Choppa swings and ducking mad Shoota fire. Guarding the controls was a towering Ork Nob. The xenos gave the tempestor prime a broken toothed grin and cracked its knuckles. Whitlock didn't even pause as he brought up his Bolt Pistol, obliterating the Nob's head in a volley of bolts.With a deafening crack of energy and a vivid green flash the force field collapsed. Almost immediately the scream of engines announced the arrival of Whitlock's Valkyrie reinforcements, near-invisible in the darkness as they raced across the sky. The Tempestus Scions fought up the rickety stairs to the Ork gunners and slave-runts up top, throwing themselves into the fray.Whitlock saw a large, brutish Ork lining up a gun on his remaining Valkyrie and emptied his Bolt Pistol's clip in the beast's direction, forcing it to dive for cover. As he fell through the darkness, Whitlock pulled the detonator from his belt, squeezing the trigger and setting off the satchel charge he had left leaning against the pile of ammunition crates. Above and behind him the sky lit up as the gun platform vanished in a cloud of fire.The Ork comet had been thrown off its collision course with the Sacred Mountain, but Mogrok decided to besiege Fortress Alaric nonetheless. Advancing under the protection of kustom bubble fields, the Greenskins meant to stomp out the Imperium's final fortress on the world.The defenders, spearheaded by the Knight houses of Alaric Prime, surged forth to meet them, intent on bringing the fight to the enemy. But even as they sallied forth, an Ork rustship launched after the wayward comet with a plan to veer it back on target.