| Statistics | Info |
|---|---|
| First designed by | Grenund Constructive |
| First released in | 1232 |
| Manufactured & developed by | N/A |
| Type | Medium tank |
| Crew | 5 - Driver, gunner, loader, commander, machine gunner |
| Main armament | 37mm Mark 2 Cannon |
| Secondary armament | Coaxial Mark 1 Light Cycler Coilgun, Mark 1 Light Cycler Coilgun |
| Top speeds | 24 kmh forward, 7 kmh backward |
| Neutral steering | No |
| Turret traverse rate | 18º/s |
| Gun elevation rate | 4º/s |
| Maximum gun elevation | 15º |
| Maximum gun depression | -8º |
| Weapon stabilisation | None |
| Main armament autoloading | No |
The Mark 3 was the first fully mass-produced tank designed by Grenund Constructive, having passed the examinations performed by Cindus officials to become the new primary tank of the Cindus military. The medium tank featured a new hull and armour layout previously designed for the Mark 2.1 STP, but kept the engine first seen on the Mark 2. Another notable change came in the form of a new cannon, increasing its calibre by 2 millimetres with the 37mm Mark 2 Cannon.
Despite still being relatively simple in terms of its technology, the Mark 3 very quickly proved itself to be potent in battle, soon racking up a consistent weekly kill count. However, when data reports were analysed, it was found that despite the damage the tank was dealing, the Cindus military was still losing a large number of Mark 3 tanks to not just enemy fire, but also frequent breakdowns and fuel shortages.