A couple of bugs:
You don't have any options in the convo with Harly Filbin in the second time you are at Battery Park. He asks you if you want to buy the code for 500 but the only thing you can say is "Not interested".
Just because I talked to Gunther before when I ghosted through Liberty Island I don't get that covo in the Airfield map. Guess a flag has been set when I conversed with him the first time.
The computer in JC's office when he gets back to UNATCO HQ after the airfield is partly inside the desk.
I'm in NYC Streets right after the UNATCO level and i went across the rooftops to get the hidden place and when I jump from the higher rooftop the the lower one (the place where you previously fell of the ground) you suddenly die.
the infolink message from jock, don't know if it should be triggered when you climb down the ladder. Cause I got down another way and when I climed up I got the message.