Separatist Anti Infantry Gun

"This so called 'Separatist Anti Infantry Gun' is going to come in handy against invaders."

- General Wetter

 was a weapon... (expand and explain)

Details
This weapon was incredibly overpowered compared to other weapons on Star Wars. This one is completely different, as it can shoot many bullets as long as the barrel is spinning.

Invention
Ever since Darth Vader assassinated the Separatist council and ordered a complete shutdown of all droids, a new weapon was introduced for Attack and Defense purposes.

Use
It's use was almost everywhere on Pro-Separatist world like Geonosis, Umbara, etc. But it can be destroyed by an explosion from a bomber, or an explosive. It can also be used to destroy some vehicles and walkers.

Obsolescence
During the Battle of the Naboo Plains, five were used to take down all the nearby Rebel soldiers and vehicles, which Ahsoka did not like at all. She destroyed all five of them, marking an end to their use on offensive purposes. They were destroyed after the Battle of Endor, and their metal was used for New Republic ships.

Behind the scenes
I came up with this, because of a few Wild West movies featuring the Gatling gun, so I thought I would come up with my own.