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We don't know. As of April 4th 2016, there has been no in-canon description of the vessel matching any known ship found elsewhere in the Star Wars universe.

For the record, the ship doesn't match the First Order ships you're describing.

enter image description here

We don't know. As of April 4th 2016, there has been no in-canon description of the vessel matching any known ship found elsewhere in the Star Wars universe.

We don't know. As of April 4th 2016, there has been no in-canon description of the vessel matching any known ship found elsewhere in the Star Wars universe.

For the record, the ship doesn't match the First Order ships you're describing.

enter image description here

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We don't know. As of April 4th 2016, there has been no in-canon description of the vessel matching any known ship found elsewhere in the Star Wars universe.