Thank you for the feedback! All very valid points. Due to time constraints, we weren't able to playtest and find these issues, so we appreciate you spotting its flaws. A bit of an error on our part, you can still aim and shoot, the weapon is just invisible. So the ability to fire should still be there.
Also a complete side note: the pause menu is now mapped to P, not esc. So you should still be able to adjust quality settings in game should any issues arise.
Regardless, thank you for giving the game a try! All feedback is welcomed. Each lesson learned will make our next project even better!