Sniper scopes

Why is it that the earliest scopes for the sniper rifles are all assault type scopes?  They're long range weapons, why would I use it as a close in weapon?  Battlefield devs, who thought this was a good idea.  I understand game balance, but really.  A 2x scope for a sniper rifle, that isn't even a semi-auto?  And that brings up another question, no semi-auto sniper rifles?