These are the many giants that ended up being developped by me and
after the KT-1 Iron Mountain was created, inspired on the famous Ratte the germans tried to do. [link]
And from there on it was actually just a matter of going apeshit with size, lethality and uses, which ended in a whole array of different landships (or "Arms Forts" as I prefer to call them, like in AC4A) that barely need any external support.
From top to bottom there's the "Iron Mountain" superheavy tank, "Land Crab" superheavy amphibious tank, the "Povelitel" (mastermind) superheavy command/radar vehicle, the "Yezh" (Hedhegog) superheavy arsenal SAM tank, the "Gigabase" that combines the Povelitel and the Yezh, except it's amphibious, the Continental Siege Unit (credit goes 100% to DemoLord, who was inspired by the RA3 assault destroyer), followed by its upgraded variant known as Cabracan and finally the "Osminog" (Octopus) superheavy engineering vehicle, designed to keep all those monstrosities going on the battlefield.
Some of you might go all "The bigger they are, the harder they fall" and that, but let me remind you this isn't WWII. In modern warfare, it's "The bigger they are, the harder they hit"
EDIT: Added names. Also, scape belongs to Shipbucket.com