Excellent Work.
By far some of the best work I've seen on Newgrounds. Your art style is breath-taking compared to other flash artists on here. So detailed and gritty; it definately fits the scene very well. The sounds were great and it really felt like some sort of espionage game or Hollywood movie. My favorite part, however, is undoubtebly the movement of every single character, especially the protagonist. So fluid and life-like, it really made the flash pop out for me from a regular Newground fight scene flash to a real work of art.
In the end, everything you mentioned in the explination added to this flash: shadow effects, movement, bullet time (etc etc), so there really isn't anything left to say but to keep up the fantastic work!