No sound anymore after patch and still no sound pre-patch

[oho]

I solved it myself. Alt-Tab out of the game and go into the windows sound.

[ATAG_Snapper]

Good catch. The best solutions are frequently the easiest. I seem to remember the same thing happening to me (and others). We'd go into Windows Sound Mixer and for some reason the sound slider for CoD was right down to zero. Glad you caught it.

[CharveL]

Now if they could fix the annoying engine sound attenuation to almost nothing when checking six that would be nice.