This map was built by Chris "MacMan" Ashton and Ido Magal. It was added into the game starting from version 1.4. Dave Johnston didn't involve in the development, so it was an unofficial sequel to Cobble.
Ritual Entertainment didn't have sufficient time to edit this map and made only a few changes. However, this map has been chosen to be the tenth map in Tour of Duty campaign mode. The only changes made in this Condition Zero version is the lighting at Bombsite A was slightly changed, the bombsite A spray mark on the ground has been removed, and the ramp to bombsite A has been made straight, no longer crooked.