I have not tried DMZ yet, so I don't know what all is required to get the M13B gun. I heard that if a party member has the gun, they can drop it and you can exfil with it to keep the gun. As long as this unlocks the gun for MW2 Quick Play, that would be perfect. I want the gun for myself and for my friend, but if the transfer is straightforward I can get the gun to my friend on my own time.
Please let me know what is required and price.