Please, let me jump in here and make a comment about this sound issue.
What are you looking/listening for? The higher up in the sky you go, the less sound you will hear. Now, that's very realistic.
You want birds and squirrels? Hey, it's a battlefield and the animals have all run like hell. They're not stupid.
Get yourself down to ground level and listen, just like you were a real soldier.
The sounds are there. It's as real as it gets.
Use hear phones if you really want an experience... Sony makes ear buds for about $20 and are worth every penny.
Mater of fact, this is the most realistic war game I have every played. It's fantastic!
