Garden
"This overgrown and crumbling conservatory still has a working fertilization and pesticide system. This system can pose a serious hazard to anyone who ventures into the greenhouse without first venting the air." 

Process
"Teams must fight for control of this subterranean Imulsion processing plant, still active despite the cessation of the Pendulum wars."

Subway
"Timgad's Central Subway station used to serve as a central hub for commuters. Now the tunnels are crawling with Locust."

Let the games begin..................................I wonder if this will be the last set of maps ?

Source : http://www.gamepro.com/news.cfm?article_id=111568