Compared to the auto rifle the scout and pulse rifle are significantly lacking. i did i test with the weapons i have and two shot from and auto rifle with an attack of 39 did noticeably more damage to a fallen vandal than three shots of a pulse rifle with and attack of 49.This is incredibly noticeable in the crucible. Auto rifles inflict more damage and are effective at both short and mid-rage ,if you go head on with a pulse or scout rifle against someone with and auto rifle you lose every time even if you hit them first.Pulse and scout rifles need to be either faster shooters or get a damage increase to even things out.