Well, true, but then you have to remember that switching to a pistol is very quick, and considering the firing speed of the Kolt it would be relatively easy to finish off the guy you hit with the bolt-action. So technically you already have an OP class: high-leveled Light Engineer with a super-powerful buff, the bolt-action sniper, and a pistol like the Sea Eagle or Kolt.
Thanks, saved me some time writing
Highest dmg weapon one shot to the chest (or head for qscopers / dotters), quickswop and pistol to the head for close quarters, and the best ranged weapon also in one package.....
In W:ET, you needed more than one headshot to kill, and given that battles quite often involved team hit and runs on enemy positons it wasn't unusual to have been headshotted 5 times in a life and still be alive (especially with a good LT handing out helmets!). This is different to nearly every other recent FPS, and is one of the essential parts of the combat mechanic that made W:ET so frantic and fun.
Edited to include W:ET info.