Download the hack, open BO2 (Best to use this tool within the barracks), run as administrator, and press your desired hotkeys (1-0 and Q-O). CLOSE this hack, enter into a game, complete the following list of challenges (most of them will be achieved through general play), and enjoy your EXP. After every game, you must exit the lobby, return to the barracks, run the hack again, close and repeat. You should level up pretty quickly.
Other Information :
This hack was intended for use by only myself. Therefore, it is specific to my class. If you wish to get the most out of this, you should run the perks hardline, toughness and Dexterity, with the killstreaks of UAV and counter-UAV.
SCREENSHOT :

Credits :
Dharbert
Virustotal:







