A Intermediate difficulty mission for the Underground map.

The thunder of metal footsteps echos through the endless caverns. Grey Mann's army of mechanical laborers have tired of thier master, and seek revenge upon the humans who enslaved them! Face wave after wave of workers turned to war, packing the largest toys and strongest explosives. Try not to get run over, the Mining Machines are here to bring down the house!

Download the map (required) and other missions here:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=454195144

The complete Underground collection:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3555971724