I run my mouse sensitivity at 1
With the m4a1 i max burst 3 shots. After I do the 3 shots I QQ
Also a trick to getting more head shots with the M4a1 and AK47 is to make your cross hair smaller
You can make your crosshair smaller by typing
cl_crosshairscale 4000 in the console.
The larger the number the smaller the cross hair. I believe the max is 6000
Good Luck
