(2) Aggressive option: Securing the administration building Deus Ex: HR Guide
Last update: 11 May 2016
Stand near crates. You could attack your enemies right away but it would result in fighting them in very narrow corridor without many chances to change your actual location.
It is better to wait until they split up, go on the left and attack the terrorist who stands near the railing. Go there quickly and start attacking opponents on lower level, using advantage of your position.
Check southern room in search for revolver ammo and go back to the meeting room you've seen earlier (Meeting Room) and explore it carefully. You'll find an e-book and a newspaper there, plus a PDA. Now examine terrorists' bodies. Use the stairs to get down. You'll find three PDAs with access password to terminals while searching the bodies.