Movin' on up! We're now in the administrative office space leading to the elevator that will take you to Zhao Yun Ru's penthouse. On the surface, it seems like a comfortable place to work. By now, given the emails and intensity of the music, you know better.
Gameplay tips: The things that sucks about this section is that you waste time scavenging for goodies. As for the bad guys, get rid of the Belltower guys then shut down the cameras. The final camera is well placed so you may want to use an EMP grenade on it.