To be honest, it didn’t seem necessary to actually take out the holograms. You can see it if you turn around and look to the center from the back of the room. The next room has security guards, so be ready for a little sneaking. You’ll want anything that can boost your speed. You should be able to just barely make it in time if you have your gun holstered and nothing is crippled. Hit the terminal as quickly as you can and shut down the alarms. Drop down onto the pathway and quickly run up the steps and run down the left path.
You’ll have a brief spot to stop, if you want, right before the first break. Spring along the path and leap over the first gap. Holster your weapons and quicksave before going.