So, bought the deluxe version. Installed, played a few minutes, music works fine, but no sound effects. There are sound effects when the game first loads (like going through the menu, changing options, etc), but as soon as I launch the game, the sound effects simply stop working. The music remains. So when in missions, there is only music, no gun sounds, etc.

Ive rebooted, reinstalled, verified game files, sound drivers are up to date. The game isn't so fun without the sound effects. Please help me fix! Thanks in advance.