Man your guy's ways are complicated for me...lol.
1) Go to the random box.
2) Make sure you have at least 2,200 points.
3) Hold "X"/"Square" to but a random box weapon and as soon you do that, have your buddy kill himself.
4) As soon as your gun appears, start reviving and when it's done, you won't have a gun. You can knife but if you hit "Y"/"Triangle", you'll have to restart.
5) Now go buy a M16, upgrade it, and noobtube them mofos!!!
Video(just in case) -
rep meeee