In M12: Last Stand, an unmanned probe is deployed to a stretch of land on Bion that was a vibrant settlement of the ancient Bion race before it was destroyed by a volcanic eruption. In order to learn more about the ancient race, the Galactic Federation has the probe complete a scan of the buried city. However, the probe comes under threat from an advancing Rohkor Beetle, that could very well destroy or severely damage the probe, which would cause a massive loss of valuable data and research. The Federation Force is immediately assigned to kill the Beetle. The Beetle must be destroyed before it reaches the probe, which will result in a Mission Failure. The HUD will warn the Force every 100 feet the Beetle gets toward the probe.