(adsbygoogle = window.adsbygoogle || []).push({}); hey wats up, if any one is wondering how to do the rank up glitch:
join a game, use a gun u got 149 kills with,get the chalenge,sign out then sign in, kill another guy with a different weapon, then leave, it gives u the points, and acog.AND good thing it says u dident do the chalenge, do it as many times u like.

this was literally posted years ago