Well, I am not sure where to start.
I understand it's a prototype but even in this stage there are things that are really unacceptable.
1.The doors are not aligned with the door frame, such that when they open the door is some distance away from the door frame.
2.The demo/prototype is poorly optimized. I averaged around 30fps on a GTX 1070.
3. There is no menu or instructions included. I have the same HFPS kit from Thunderwire and I can tell you it's not hard to include a menu and/or instructions.
4. The example note found upstairs is straight from the kit, you could have at least added your own notes.
Overall, there is potential but without some sort of backstory and sense of what your have to do, it's hard to play and enjoy.