The above step did not work for some people and for me also but i found it of my self its so simple no need of many steps as given above only 2 steps required to open all stuff1) Open your call of duty multiplayer go to setting then multiplayer setting and change the key to DL2J-8PY4-4Q22-GE48-88D2 then click on verify and quite the game.2) download the above mpdata file and replace it in your user or player folder enjoy
Apart from the daily challenges, there are a variety of weapon challenges. This helps in your profile level progression and weapon level progression, allowing you to get your hands on more weapons and attachments.
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