Greetings,
Need help with the second time in Chinse ministry building. I have made it in the big room and disabled all the guards including the guard needed for the scanner after scanning his eyes. What I can't seem to find is the way to the trucks to blow them up. I have gone all the way back to starting place from the utility rooom but have still not located the way out. If it is through the vent in the ceiling I may be stuck here forever because I have tried everyway I can think but it does not appear possible to get in the vent from the table. I could find no doors or other way out. What am I missing? Thanks for your help.

It might help if you told what this "big room" is.

I see this was a couple of weeks ago. If you are still stuck, climb up on the table in the left corner and open the window.