Here is the Gold M4 in MW2. I'm thinking of doing all these guns in short showcase form.
Here are the challenges:
Get 50 kills with the M4
Get 50 ADS kills with the M4
Get 10 double kills with the M4
Get 15 kills from behind with the M4
Get 3 kills without dying 10 times with the M4
Music: Sweet
Musician: LiQWYD
URL: / liqwyd