I was thinking the same thing. They could also be looking at it from the complete opposite side too. I know I used the Scar-h a bunch when the game first came out and then it got nerfed in the first patch, and I quit using it. The same with the f-2000, except this got nerfed in a later patch. So maybe for these guns, they were highly popular before dice messed with them, now they want people to re-visit these guns.
The pkp has always been a beast from my experience with it, as long as you burst fire unless they are right on top of you.
Never used bolt actions much, so can't comment on the L96. I just know it was frustrating using it on the last assignment (playing regular not hardcore). But there are some folks on here that do very well with that gun.
Oh well, maybe dice will let us know how they choose the guns sometime. We may find out that they use a tank of manatees that select ping pong balls that have the gun types on them (ala south park episode)