Tank/World

In this world, everyone is a tank! Your organs are modules without a crew (since people in the machines are parasites for them).
A catastrophe recently occurred. All nations (USSR, USA, GERMANY, EUROPEAN TEAM, KOREA, FRANCE, SWEDEN, and CHINA) entered a war in which few people remained, but tanks have consciousness. Here, as in games, there are ranks like levels, and the lower the rank, the weaker the machine.

departments/classes of technology

LT: Light Tanks' reconnaissance ability should help them spot threats faster, which is why they rarely engage in combat with others and act as predators. Their speed and visibility allow them to hunt other types of vehicles, but they lack armor. And the most terrifying are these.

Wheelers, having wheels instead of tracks, can survive a hit and lose speed. They are considered apex predators, but they are extremely vulnerable because their organs are very close together and they have no armor at all. And what's most frightening is that they flock in packs like animals like hyenas.

CT: Medium Tanks are balanced in terms of health and armor with weapons, the downsides are also minor but noticeable.

TT: Heavy tanks are the heaviest and most protected vehicles that suffer mainly from transmission and engine failures due to their weight; they have a huge amount of health and armor, but have low speed.

Tank destroyers have good damage and average armor, but they are often weak and they don't have a turret, which makes them vulnerable, but if they shoot, it hurts.

Now you are at rank III (3) (you choose who you are) and you are now standing in the Hangar in a deserted city, hearing the squeal of wheels and another one that apparently relates to the wheelmen.