I don't know what NVGs the team used, but many NVGs have to be focused at specific ranges. Some that I have used are almost worthless at arms length, when you focus them for distance.
Per the book No Easy Day
the NVGs used were 4-tube units (Elbit QuadEyes or similar). You can see them in the second photo from the book that was linked in post #3 (on the top shelf with the HK45C and P226.)