This is the SG-10 Scorpio. The bigger badder version of the SG-08 [link]
It's quadrupal like the rook, but the thing is its much bigger, more survivable, has more weapons, and a larger psychological profile. In other words, its scary as hell. Its equipped with a 50mm gatling cannon on one of the shoulder hardpoints, and a rocket pod that holds up to 125 heat seeking micro rockets. on the lower head it has two swiveling 30mm miniguns for anti-personnel and close quarter defense. All of the Scorpio's four legs have a 90 degree turn radius allowing for a free range of movement either forwards, backwards, or sideways, but the agility of this unit is unhampered by this ability as well.Because the size of this unit is about 3 times heavier than the orion, the survivability of this unit is rationally triple that of the smaller unit. The thicker armor makes this unit have an overall weight of 15tonnes, but in effect are more suited for combat with Zygotian GA's. The Scorpio's main job is close ground support and siege warfare. Like the Orion, this unit follows the 2 pilot configuration, and are located like so. This units capabilities may be impressive, but the bigger the unit, the more expensive it is to maintain. And that is the main reason the Orion units outnumber the scorpio units 10 to 1 in the Symbiotian military. It's also known as "Crab" to the Zygotian military
Land- 60MPH (with a range of 1600 Miles)
Air- Gallop only, anything other than a small jump cannot be attained without assistance.
Marine- 10 knots (wading only)