It was alright
I didn't find this one nearly as enjoyable as many of your other games. It felt really constricting to play. It may be that you just can't move side to side so it felt like I was stuck in a rut, so to speak. In future shooters you may want to avoid a red cross hair if you plan on having a green background, such as the night vision. It was a nightmare because I'm color blind. I had trouble finding my cross hair against the night vision background.
I didn't find this game as creative as many of your others either. It just didn't feel like you had given it much thought. Plus, it wasn't at all difficult. There was nothing to work for.