Made from a Star Wars chemeleon droid flipped upside down, fodder turret parts, the lower half to an Armored core robot, and various other hoses/fodder sections.
"There aren't many troopers who are willing to spend all day and night guarding a base in a hot jungle or freezing artic location for weeks on end. Such extreme locations can take their toll, but not on the Cobra Terra Drone. These robotic sentries have three settings; guard mode, patrol mode, and exterminate mode. Modular in design these drones can be equipped for different modes of locomotion over different kinds of terra firma. From two legged, tank-treaded, and even hovercraft based, they can be set up anywhere Cobra needs an 'automated solider'. But we Joes just like to think of them as moving target pratice!"