When their secret headquarters are discovered, the Terrorists attack the nearby research facility knows as "Rex" and kidnap the scientists. After discovering hidden biological weapons in the facility, they decide to destroy all related documents to keep the weapons from being put to use.
Counter-Terrorists: Stop the Terrorists from planting bombs in the research facilities. The mission is to defuse all bombs in the area.
Terrorists: The Terrorists with the C4 have to plant a bomb in at least one of two designated places and make sure that it explodes.
Remark: There are two target areas for bomb planting in this map.
- Turkey: 9 July 2014.
- CSN:Z: 23 September 2014.
- Vietnam: 26 March 2015.
- Indonesia: 16 March 2016.
- The institute was once overrun by zombies and can be seen in the Counter-Strike Online official manga, Zombie Escape.
- According to storyline, Terrorists won and succeeded to destroy the place.
- This map is named after Dr. Rex.