The El Dorado is the ship of the MacDougall Brothers.  Not as technologically advanced as the Outlaw Star the El Dorado is still very powerful.  In addition to being equipped with a vast amount of missiles the El Dorado is also equipped with four hidden grappler arms.  And when the job arise when the MacDougall Brothers need some added fire power, the El Dorado carries the Helsion Missile, the equivalent of a thermo-nuclear missile.