Ta Fortrezz with ta Big Zcary Kannon

"Ta Fortrezz with ta Big Zcary Kannon" is a peculiar Ork Battlefortress that surpasses in weirdness and power any other. Employed by Warboss BadZkull in his crusade in the eastern fringe of the galaxy, the fortress is comprised of a dozen of looted tanks that form the moving foundation that holds the main weapon and pride of the construct: an imperial spaceship engine. This weapon is extremely dangerous to both the enemy and the user and requires an incredible amount of time to recharge; if sufficient damage is dealt before then, the hull simply bursts open resulting in an enormous cataclysmic explosion as it happened during the siege of Batan when the enormous fortress was taken down by the combined forces of an imperial guard regiment and a few warhound titans, narrowly sparing the imperial barricade and dispersing the majority of the green invasion. Despite the seeming victory and halting of BadZkull's crusade, a report of missing spacecrafts in the space nearby the Batan system is raising rumors of a near re-match.