Entering the Dragon's Lair

Chapter 10 - White Noise Shocking evidence pulled from TYM servers revealed a more elaborate plan than expected: Sarif Industries' top research team didn't die six months go; the attack was staged to cover up their kidnappings! Desperate to learn more, Jensen confronted TYM's president in her penthouse, but Zhao tricked him and escaped into a panic room. Nevertheless, what little she said directed him to Picus Communications and the world's most famous newscaster...

M2 - Entering the Dragon's Lair is a main mission in Deus Ex: Human Revolution.

Confront Zhao in the Penthouse
Bypass the upper city labs via the server room. Get to the Penthouse; there is a big ornate hall with what looks like Zhao's office. You should loot everything you can from here before you go further, and do any hacking you want to, as next time you are here you might not have the time. Get plenty of ammo as you will need it shortly. Look under a couch in the first section for a safe code on a pocket secretary. Go into Zhao's private room and confront her.

Escape the ambush and get to the hangar
Zhao calls her security and you are stuck in the antechamber as they pour in from the main entrance. There are a lot of them, and they are well-armed. One or two well-placed gas mines in the entranceway/lobby before confronting Zhao can make this trivial, leaving at best two enemies to avoid or neutralize (keep in mind they will wake their comrades up, so be swift).

If you can fight them directly then good luck; the Typhoon in particular can make this a short fight. If not, in the right-hand side of the room as you look towards the main exit door there is a vent tunnel. Go to the right on the top level, and you can get inside it. this allows you to sneak between the two rooms where the security guys will hang around looking for you. You can take potshots or throw grenades at them and gradually pick them off until they are all down. Then come out, loot the bodies and exit.

Open the hangar bay doors
Kill the robots or dodge them to get to the control room on the upper left-hand side of the hanger door where a security terminal awaits. Rockets scattered. EMP grenade in the office. Frag grenade and Typhoon ammo in the lockers.

Once the robots are deactivated or dead the announcement changes, and you should go to the office on the right-hand side of the hanger door and activate the button opening the hanger doors. Malik flies in and lands.