Your game will be near perfect(for me, and for many I thing :p) if you add these things and solve those problems:

-In "Statistics" you need to put a option to see one score detailed, instead of only show a general info about many scores you did.

-When we finish a play, when showing the details of your play, make it possible to save some comments about the play(this will be a plus about the first thing that I told)

-When I put the resolution 1920x1440(4:3) the entire screen is filled, it's 4:3 black bars, not 16:9.

-When not using a native resolution, things looks ugly, pixels looks not aligned, really unconfortable to use some resolutions.

-You need to make a better crosshair customization, with some option the crosshair stays not aligned, and make it possible to change the thickness of the crosshair, outline color, things like that, people will apreciate.

I think that you need to stick a topic where people give ideas for you to implement to the game, don't do things alone, the public can really help the game be one of the best for people who look to get better.