they became cats

The FV-44 (full name: Fighting Vehicle - 44) is a super-heavy, multi-turreted monster of the British Empire. Created from the corpse of a KV-45.

Looks like a character from the computer game Minecraft. In some episodes, he wears a farmer's hat. AND NOW HE'S A DAMN CAT

The Karl-44 is the Third Reich's super-heavy monster. It was created at the "X" factory using a modified KV-44 design.

Built from a modified KV-44 design that had been previously damaged. Its turrets can traverse a full 360° (like the KV-44), but its depression angle is limited. The main gun is 600 mm. The turret is based on the Karl mortar, while the secondary turrets are roughly shaped like those of the Maus, Yagi E 100, and PZ-4. Its eyes are the same as those of the German K-Wagen, a monster of World War I. The hull shape resembles the KV-44. It has a curious character: it is intelligent, reluctant to reason, and also taciturn, but obeys all orders from its superiors. It has the ability to quickly analyze a situation. In recent episodes, it has also demonstrated the ability to hack computer systems! Karl-44 cannot disobey orders from its superiors. It is less humane than the KV-44.

There are turrets from tanks such as the KV-2 and KV-1. The turret is square, with hatches on the top and rear. The secondary turrets are more elongated, and one of them has had its armament replaced with a Maxim machine gun. It lacks a moustache, and only has a pronounced eyebrow. The road wheels are hidden behind a large bulwark, which bears the coat of arms of the Russian Empire, along with a pickaxe, shovel, axe, wrench, and sacks. The exposed part of the tank's operating mechanism, consisting of several gears, is visible at the rear.

The KV-2 (full name Klim Voroshilov-2) is a Soviet heavy assault tank that first appeared in Season 1, Episode 1. It has a standard green paint scheme.

It changed colors several times. The first time, when it was demonized, it became gray; the second time, it was repainted back to the standard green; the third time, it was redesigned and painted black, but the fourth time, it became green again.

Description
General MS-1 - Light Tank, assistant to General KV-6 Senior, Head of the Soviet Union from Season 1 to Season 6. The General is a man unaccustomed to surrender. He has endured much, witnessed the deaths of thousands of his soldiers, yet continued to defend the USSR. Nevertheless, he occasionally displays pride, leading the army's combat operations independently even in the face of adversity. For example, he refused Ratte's offer to bring the American army to his aid. In calm situations, he keeps his emotions to himself, but during serious losses for his army, tears well up, and a smile appears during triumphant victories. Currently, due to depression caused by the heavy losses, as well as the KV-44's inclusion in Minecraft, the General has become very aggressive and crazed, as evidenced by his orders. After the KV-6's return, he chose to retire, and the KV-44 went looking for him instead of staying.

Leviathan itself is powerful, having already claimed the lives of Alpha, Tsar Tank, and many others, and was also able to capture several worlds (its own, "Oil" under Gesarius), most of the Soviet Union almost to the Volga and on the approaches to Kuibyshev (Samara), and the territories of other countries (for example, France was completely captured). Its weak point is its horns. It has many abilities: acceleration, super-shot, portals, regeneration, resurrection, and demonization (transforming someone into a demon). The Lord of Hell, the one who turned a prosperous dimension into a terrible place and deprived the Fallen Angels of their home. Ruthless and cold-blooded towards everyone, even his own son (mini-series - Leviathan vs. Son). Cunning and intelligent, it rarely engages in battle itself and usually sends a minion (in extreme cases, Dora) to destroy the enemy.

KV-44 (also known as the First KV-44, full name Klim Voroshilov 44) - A super-heavy, multi-turreted monster of the Soviet Union, a symbol of resistance to Leviathan. A three-time Hero of the USSR, he was one of the first to defeat Leviathan.

Matilda is a British Empire monster spy who was sent to the USSR to share their developments and learn about their plans.

Ratte (Russian: "Rat") or Landkreuzer P.1000 "Ratte" (Russian: Land Cruiser "Rat") is a super-heavy tank of Nazi Germany. He was born in the German Empire, and after the defeat in WWI, he believed that everything was taken from them unfairly. After Leviathan's second coming, he became one of its minions; the Overlord saw potential in him. By the time of the first season, Ratte held the rank of non-commissioned officer. He was killed in battle with Leviathan when Ratte realized he had been abandoned to his death.