he must of had the code

it was posted just look for it next time. It's like the prestige glitch, when you're close to growing a level be ready to pull your ethernet chord. Then go in a match and when you level up, pull out your ethernet chord and turn it off in the front and then when you turn it on you should have all the guns

Don't you meant you DIDN'T answer your question.

its a glitch look it up

He must have had a code or done the prestige glitch, it can be found in the glitch section.