(adsbygoogle = window.adsbygoogle || []).push({}); if ur freind gets a good weapon from the mystery box that u want walk up to the mystery box buy it back up like acouple steps then press
b rapidly the crouch then stand up again over and over again. like T baging the box. and when the gun pops up it will be the same gun ur freind got enjoy

I have done this many times and it has always worked for me. i wish i could make a vidio but i dont have a vidio camera or anything like that.