Very interesting game.
I liked the custom models, and the cutscenes that you included were a nice touch.
A couple of simple issues, though.
The camera was very restrictive, which didn't really allow for me to take in the scenery. I also would have liked to be able to explore more of what the map had to offer. While I was being led through the map, I figured that it would take me to see the other areas.
Some more technical problems that I found though were the light seeping through mesh edges, which can be fixed in the light's settings. The movement was also too slow and the camera focused too low down.
Again, however, the game was really enjoyable and I loved the post-processing. I even went back and tried to get out-of-bounds.
Good luck in your future game-development endeavors. :)