User blog comment:KATANAGOD/Black Ops 2 Logo and Trailer Release Date Leaked/@comment-3470114-20120409210114/@comment-1263839-20120409231209

Because hardly anyone used them in the MW's, compared to Stopping Power (CoD 4), Something (MW2, just never noticed anyone use it), and the fact that you have to get 2 perks to match it in MW3.