Why buff Cons?
The point is to nerf Maxims.
It's a very slight buff to cons if they get better accuracy at vet2. If cons are better then you can nerf the maxims and less people will rely on MG spam.
Like I said, the buff is so tiny that it makes a difference if used right but no diffference if used poorly. I notice my cons and the enemy's cons can't hit my grens properly even with vet3. That's saying something.
It's good for balance since less people will rely MG spam and makes soviet infantry fight West infantry better. It's good for realism since if you've been fighting for a while you should be able to shoot a rifle without much problems eh?