I was only able to get into the garage area, but this is a neat idea. The mouse sensitivity is kind of high, so it's hard to look around accurately.
(I know in your post mortem you said y'all couldn't use the perfect solution for feedback on if something was melting or not. But even if the object glowed when you shot at it, it'd be a little easier to know if you were even shooting something that could be melted.)