Areas tied to the main quests
1 � Black Market Buy - Area where you begin the quest.
2 � Black Market Buy - Working elevator and an unused elevator shaft. They lead to the section with the apartments (3 on the map).
3 � Black Market Buy - Starting area after using the elevator or the unused shaft.
4 � Black Market Buy - Signal booster (optional quest objective).
5 � Black Market Buy - Lobby with the elevator and an unused shaft.
6 � Black Market Buy - Chopper. Area where you can find Singh (optional quest objective).
More important locations on the map
1 � Stash behind the airshaft grate - Secret area (+100XP). Triangle code.
2 � Use the Klipspringer Jump Mod augmentation - 400 credits.
3 � Cracked wall - Use the Punch Through Wall augmentation.
4 � Locked door - Get to the junction box and use the keypad (security 1) - solve a mini-game or enter the "classical code" 0451.
Biocell.
5 � Ladder to level 3.
6 � Side room - Use the keypad (security 1) / use the code: 4801 or reach it from the upper floor. Ammo and weapons in the lockers.
Cracked wall - Use the Punch Through Wall augmentation. It will unlock access to an abandoned elevator shaft (+100XP).
7 � Entrance to the upper ventilation shaft.
8 � Penthouse - Pocket secretary.
9 � Area with deadly gas (+100XP) - You must be using the Implanted Rebreather augmentation. You can reach this area by using a shaft, by dropping from an upper level or a by punching a cracked wall. There's a lot of ammo here.
10 � Observation lounge - Pocket secretary with a code to the elevator lobby (12 on the map).
11 � Penthouse - eBook (+100XP), computer (security 1).
12 � Locked door - Use the keypad (security 1) and solve the mini-game or enter the code 0682.
13 � Sniper rifle (you must use a lifter standing next to elevator, to get up there).
14 � Triangle code - inside the dumpster with ladder