I recorded this and uploaded it here: https://mega.nz/file/xb9EmQzI#qKrLV-IC4ip6Q9se2K3ji2H_fipsLIzQNnDZxzi-YMM .
Nice game, I liked it, only real complaint was that the crosshair was difficult to see against some of the backgrounds.
Do you seek to sell this game? I have no idea how well it may or may not sell. Have you done market research, seen how well similar games sell? Though your game is just a short demo at the moment and at an early stage of development.