I feel that focus fire needs a buff. Say if I get the iron banner auto rifle with focus fire, the dps should not decrease while ads. If I use up a perk slot on a gun, that gun shouldn't do worse because of it.
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Here is the stats to back it up https://docs.google.com/spreadsheets/d/1L7FV9l4hXo2tHD3XlFUp854XvJIwTKFIPvASLduPPS4/htmlview?pli=1 Credit to exxtrooper