As a genuine level 6 sharpshooter, i find the M14 and dual HCs noobish. If you're playing sharpshooter and you're spamming, you're doing it wrong.
I find using the Xbow i spawn with on wave 1 like using a full mag from a M32. Overkill. The 9mm does the same job, if you're any where near a decent shot, which you should be at level 6.
I then sell the Xbow and buy armour and a single HC, because at this stage that's all you need. But i'll buy a Xbow by the time wave 4 rolls around.
So a real sharpshooter should have :
Armour
9mm
HC
Xbow.
If you're a lower level (1-5) then a LAR is an acceptable weapon.
But nowhere unless you feel your team will lose without it is it acceptable to use an M14 EBR.
And a question: If the SCAR and EBR both shoot the same bullet, why does one do more damage?
The point is not that the EBR is noobish, its that the Laser has a benefit (crosshair) that is not needed and needs an actual drawback, hence the firerate reduction.