Oh thanks a lot, I'm so sorry for the inconvenience, I was able to play it! Good tech demo. My only complain is that the enemies don't react if I shoot them from afar, so it was a matter of shooting them from the doorway and that would clear the room. It would have been cool if they all reacted at once to your first shot and they'd all charge at you, that would be really scary and fun, I'd also expand the radius of detection.
Another crazy idea are distractions, since you have a mask and you try to blend in this secret party, maybe have like cups on tables that you can throw across the room so that they all look that way and you'll be able to stab some of them without other people noticing, it would make it like a "hitman" like game. Maybe even poison their drinks, hiding bodies under tables or stuff like that. Also, not just shooting everyone Rambo style, would make it more tense, since you're walking around dangerous people who can react at any point and kill you, it would make for a more exciting and unnerving experience.
Still, you have a solid base to expand upon with new ideas and crazy mechanics! That was remarkable what you put together in just nine days, I worked with Blender and I know how hard it is to make 3D characters and animations. Great job so far! Good luck!