The Night Ranger Quad really should be a Cobra Ferret.  This is the finished vehicle.

Base vehicle: Night Ranger Quad

After I had already painted the Ferret I added a couple little details to it.  I cut the barrels off a couple of Firefly's guns and glued them into the inner front missile launchers.  I also painted two of the missiles and put them in the launchers as well.  After painting and adding a Cobra logo it was all finished and ready for battle.

Codename: Cobra Ferret
Fast Attack Vehicle

Weapons: MX-35 Anti-armor Cannon (side-mounted) / Twin .30 Caliber Machine Guns (front mounted) / FR-60 Rocket Propelled Grenades (front mounted)

The Cobra Ferret was developed utilizing designs stolen from Sigma 6 by the traitor Firefly.  The basic vehicle and its capabilities are the same as the S6 Night Ranger Quad.  The Ferret features an upgraded weapons package that includes a side-mounted MX-35 anti-armor cannon as well as twin machine guns and RPGs mounted under the front fairing.  The Ferret is used by Cobra troops in the front lines for troop support during raids on Sigma 6 installations.  It is also the preferred means of transportation for the Crimson Twins when leading troops into battle.