man, where do I start:
I loved your design. Great level design and how everything flows together was awesome. Detail was also top notch. One of my gripes is how many ways there were to get around. Although I also loved that, so torn. My biggest issue was the paths I took brought me to some fights that were not very fun because of the weapon options I had at the time. Not too hard, just kinda off balanced.
The end.....not going to spoil it, but I thought it was too much. I liked the idea behind it, but by the time I made my way through, there was no way I was going to be able to kill everything.
Great work overall. This is a long map, which isn't a bad thing.