Tencent Games and Activision show us the new robot zombie defense mode of Call of Duty Online, the China-exclusive free2play shooter. While Cod Online is currently only in China, Activision did mention about brining it overseas in the future. (Call of Duty Online, PC)

http://n4g.com/news/1404241/call-of-duty-online-new-robot-zombie-defense-mode-looks-stunning-first-trailer-unveiled