Tactical Autonomous Robotic Defense System

The Tactical Autonomous Robotic Defense System was a United Nations Space Command project.

TARDS was tested in Industrial Zone 08 of Chicago, on the planet of Earth.

Trivia

 * The systems can be seen in the level Foundation. You can see "Abandon in Place " written on them, hinting that it was a failed project.
 * If you abbreviate "Tactical Autonomous Robotic Defence System", you get T.A.R.D.S. or tards, wich is commonly accepted as short for retards.