The Convergence scout walker is first and foremost a terror weapon, designed to strike fear into the hearts of those unlucky enough to encounter it.  Deployed most heavily during the first and second Convergence wars, it was the harbinger and vanguard of the main battle forces of the Convergence. 

Technically, the scout walker is a Battleoid, based on height (about 15 meters) and movement type (walker); however, it varies from most battleoids insofar that it is piloted by six Greys joined in a common mind.  Typically, one pilot controls each of the main functions of the vehicle: the legs, the grabbers/ hands, the weaponry, communications, sensors, and navigation.

The control scheme of this vehicle does not lend itself to use by non-grey crews, although on rare occasions, captured scout-walkers have been retrofitted for use by non-grey pilots.  This was typically used as an infiltration tactic, and for every successful attempt, there were a large number of failures.

Armament

The Convergence Scout Walker is typically armed with a large infrared laser ("heat ray") powerful enough to incinerate most organic targets instantly, and ignite most conventional inorganic targets.  This weapon is generally used as a defensive measure, when the crew feels threatened. 

Common secondary weapons are typically non-lethal, and include tractor-beams, sonic cannons, and pulsed photonic emitters.  These are intended to instill panic and confusion in the walker's victims.

History

The Convergence scout walker was based on the design of the civil defense battleoid.  When the Convergence broke away from the Empire of 1,000,000 Suns, they took several civil defense battleoids with them, and many greys had experience with those machines from their time as scavengers and trash collectors in the empire.