GIS Main Battle Tank

Erebus is the main tank of the GIS, this tank is quite powerful is quite common in the empire, used for all kinds of occasions, thanks to the variants.
Role:
Its main role is to provide heavy support to the infantry, as well as destroy other armored divisions or make lightning attacks.
Armament:
The tank has a 140 mm cannon that can easily pass through the enemy's armor, and as if that were not enough, it has 2 light machine guns, one fully automated, and 2 dual anti-tank missile launchers.
Notable Equipment:
--- 4 people crew (Gunner, Driver and 2 Support gunners)
--- Range of 75km
--- Digital Fire Control and Gun Control System
--- Heavy Armor plates
--- Small Adaptive Shield Generator
Variants:
Erinyes Long Range Support Battle Tank: This variant uses a railgun as the main weapon, increasing the range of attack up to 300 KM, but at the cost of removing the shield, this for the space for more batteries of energy for the railgun. Its main role is to make high-precision attacks and kill "Landkreuzer" enemies.
Chaos Self Propelled Artillery Tank: Variant with a cannon of 280 mm, but of little reach, specialized in destroying bunkers or enemy bases.
Ares Self Propelled AA system: Variant with Flak cannons of 44 mm each, being in total 6, its fire power is unimaginable, creating a cloud of burning shrapnel, which frightens any air force that crosses with it