These guys have worked (and are still working ) very hard to bring an authentic Vietnam experience. NVG's are NOT an option. Just take a second to think about it. "Charlie owns the night". Sometimes it's a light night, and sometimes it's black, but Charlie owns all. Use what you have, and don't ask for more, or Uncle Sam will bend you over a burger bar and smack your ass with a 3ft horse anus sausage.