Still bugged out, but I did some research. Based on pure observation and a small diagram with assumed shapes, I think its an Osprey military vehicle. That would explain why its landing at Camp Smith, since it doesn't require a runway, only an open patch of land. And since republican convention in the city is coming soon, this might be some security devices. And to transport it at night is even more sensible.
http://news.bbc.co.uk/olmedia/155000...2osprey300.jpg
THats a pic of an Osprey btw. Courtesy of google Image search (where would I be without it?)