This Space Wolves Legion Vindicator Siege Tank was part of a diorama at Warhammer World.
The Vindicator is a dedicated siege tank, deployed by the Legiones Astartes to breach enemy fortifications and destroy the heaviest enemy vehicles. Slow, ponderous, but heavily armoured, these tanks rumble into range before unleashing a devastating salvo of demolisher shells or piercing bursts of energy from a magna laser destroyer. Vindicators are especially useful in the confined terrain of cities or other enclosed battlefields, where they can smash buildings to broken ruins and forge a path through otherwise impassable obstacles.