Black Mamba super-heavy tank

"This is the Black Mamba super-heavy tank, this beast of a tank mounts the gun used on the J-1 proton cannon, that's right, we've taken a gun which can shoot down Acclamators and made it into a tank gun! This monster will decimate any and all Republic ground vehicles!"

- Jane Zarkan showing off Earth's first superweapon of galactic importance to her ally, Count Dooku

The Black Mamba super-heavy tank was a superweapon produced by Earth. The Black Mamba was an extremely large super-heavy tank which used the J-1 semi-autonomous proton cannon's gun as its main armament, the J-1's cannon was exceptionally powerful, capable of punching through the shields of an Acclamator and causing severe hull damage, with 3 J-1s being capable of bringing down an Acclamator in seconds, as demonstrated during the Battle of Ryloth. It was believed that this tank would be able to decimate every type of ground vehicle in Republic service, as well as most aerial vehicles as well, if able to elevate the gun enough to shoot them.

The Republic was naturally very worried about this tank, and ordered it to be destroyed, however the Republic sabotage team was killed, and the prototype tank saved, the prototype would later serve in combat, were it proved to be indeed devastating to the Republic forces, but was fairly easy to immobilise and knock out, due to it being a tracked vehicle (as was the tradition in tank designs on Earth), its huge weight also made it quite slow.

However the cons didn't deter Jane Zarkan from demanding the tank enter production, as far as Jane was concerned that battle-winning, possibly war-winning, potential of the tank, and its extreme power, far outweighed its cons.