When loading into a game there was no sound effects only music. Fixed after going to another stage of the mission.

Loaded into the first mission, got through to the first 'stage' start and the music track began, however this removed other audio (SFX) - Specifically it removed steps, mining noises and gunshots, ...

After starting my first real mission, almost all sound effects just did not play. Such as shooting, walking, mining, talking etc. But my sound settings were unchanged. Some sound effects worked lik...