Ok so this pretty much lets you unlock ANY gun at ANY level.

YOU MUST HAVE GOOGLE CHROME FOR THIS!!!!

Step 1) Go to [ Register or Signin to view external links. ]

Step 2) Click on any class you want the gun for.

Step 3) Go to AR

Step 4) Right click M4A1, and click Inspect Elements.

Step 5) Search for M4A1, and edit the one that says: <span>M4A1<span>

And also edit the one that says:<div class="elite-ui-customclassmodal-item" data-slug="Gun here" data-key="iw5_GUN"

Step 6) Change the M4A1 to whatever gun you want. ex. <span>FAD<span>

Step 7) There should also be one more that says <h4>M4A1<h4>. EDIT M4A1 TO THE GUN YOU WANT. Ex. <h4>FAD<h4>

Step 8) WHEN YOU ARE DONE EDITING WITH THE ELEMENT THINGY MAJIGGER, CLICK THE X ON THE TOP RIGHT CORNER, NEXT TO THE M4A1

Step 8) Click Select. Then click send classes to game or some sh** like that.

Step 9) Wait some time... idk how long depends on your connection.

Step 10) YOU WILL HAVE THAT CLASS AND WILL LOVE MEH?
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If this worked for you, then please reply saying it worked so that people know it is legit. Thanks