Gao Yang hadn't actually seen Grand Ivan's gesture; his shout was just a subconscious action, and furthermore, he didn't have the time to continuously watch what gestures Grand Ivan would make.
Looking through the infrared night vision device, one eye could see through the smoke to the other end of the corridor, while the other eye could only see the thick, rolling smoke. This difference made Gao Yang very uncomfortable and distressed.
Gao Yang thought that reinforcements should be arriving soon; if it weren't for his reinforcements taking out or suppressing the external guards, the pressure he was under would definitely be greater.
The problem facing Gao Yang now was that he couldn't distinguish between friend and foe.