The Sabre is a one-of-a-kind (perhaps a sort of 'hero unit') used by a member of the rebellion. Jien, a tribal leader of one of the Kul-u tribes, lives by the group credo of living hard and playing harder.
With room for a pilot, usually himself, and a gunner, the Sabre (translated) is a force to be reckoned with. Powered by two engines operated at levels way above factory standard (overclocked), the ship has a respectable top line speed and more than enough weapons to make a quarry worry.
The major downside is that, as with most ships ran by the Kul-u tribes, it is temperamental. Any alien mechanics trying to modify or fix the vessel, if they're lucky enough to make parts, are reluctant to touch anything, lest their business - and lives - go up in one messy, atomic explosion.