Down loaded Call of Duty 2 from Apple apps store November 22 2015 Couldn't get the voices on first install on Intel Mac Mini. Simple FIX which is very easy to do. Go to -> Your folder... Applications/Utilities -> Audio Midi setup; than set Audio output to 44100 Hz / 2ch-16bit. I just changed the settings... ant WOW... it works! I'm using a late 2012 mac mini loaded with a 2.3 GHz Intel Core i7 4 GB 1600 MhZ DDR3 with Intel HD Graphics 4000 1,536 MB It WORKS GREAT. No problems. If you macs more powerful.. good for you. Just thought I'd let new people that downloaded the game today that the sound problem is easy to fix.