Star Wars X-Wing: Punishing One - Rules of Play says:
Dengar is one of the galaxy's most efficient mercenaries, and his JumpMaster 5000, the Punishing One, is also much deadly than it might first appear! The Punishing One Expansion allows you to command both Dengar and his surprisingly powerful ship, with its impressive 360 degree arc of fire, in game.
Star Wars X-Wing: Punishing One Review:
Unfortunately there aren't any reviews of Star Wars X-Wing: Punishing One yet, but why not check out the publishers website for more info.