Deus Ex/LaGuardia Airfield

Battery Park
As you start the level on Battery Park, go to the subway entrance. If you rescued the bum at Hell's Kitchen's basketball court:
 * Enter the western shack, where two bums are talking. After their conversation, talk to the male bum, Curly, and he'll give you the phone booth code.  Proceed downstairs.

If not:
 * Go downstairs and pay Harley Filben for the phone booth code (6653).

Step up to the phone booth on the western side of the station. Enter the code and stay inside the booth until it stops moving. Continue through the underground tunnel, and climb up the ladder.

Abandoned station
Your objective is to find the code to the mole people's hideout. There are two ways to accomplish this:


 * 1) Talk to the bum (Charlie Fann) at the northeast corner of the station.  He'll ask you to fix the water supply, so continue north to the rubble and open the door facing east.  (If you lack explosives, see Available LAMs).  Use a rocket or LAM to clear your path, and proceed through the hallway.  In the next room, jump over the steaming pipes to receive minor leg damage instead of sacrificing a lockpick.  On the north wall, turn the two wheels on the pipes and return to the bum for the code.
 * 2) Go upstairs and head east, past the turnstiles.  Pick the lock on the map (20%) for three flares and a datacube.

Available LAMs

 * 1) Enter the men's bathroom on the western side of the station and speak to the junkie.  If you have zyme, then you can trade a vial for his LAM.  If not, then you can mug the drug dealer for two vials at the southeast corner of the station.
 * 2) Go upstairs and head west to make a deal with El Rey.  Take out the drug dealer at the southeast corner of the station if you haven't already, and return to El Rey for a free LAM.  In the vicinity you'll find a gas grenade in the booth and buckshot in a combat crate.  Southeast of that room, there is an ATM machine and a multitool above a telephone.

Mole people hideout
Enter the women's washroom on the western side of the station, and locate the keypad underneath the second sink from the left. Key in the code, and proceed through the secret door to the southwest.