[Javatango]

Hey guys,
Anyone know where I can find a .MP3 with gameplay audio from Battlefield 3?  I want to load this onto my music player and take it to a Guitar Center to evaluate headphones. 
 
There is probably a way to record audio from BF3 while playing, but I have no clue how to do this.  Any help is appreciated!
 
JT

 

[DoubleShot]

https://www.youtube.com/watch?v=yCJUHz-8pDk
 
https://www.youtube.com/watch?v=6XgygSagxh4
 
I'm pretty sure you know how to download these to mp3 formats and edit them to your liking with audacity.