This is a series of semi-realistic fictional tanks (by me) called the Leviathan Destroyers. They are a group of high ranking tanks built for the purpose of mass conquest and overwhelming the enemy. They use elements of the past and future, most likely using past elements as a form of camouflage. The creator(s) of these elite tanks are unknown and are likely be from a different timeline. Though tanks and treaded vehicles are their most common form, they can also be mechs, and fortifications all marked gradually on how strong they are.

(CC BY-NC-ND 4.0)