Since this is about video games, nope. There's a thing called quick scoping. Which is very effective if you have the skill.
as i'm sure you very well know (matrix) i hate quickscoping with a passion, in MW2 before it was overrun with them i did snipe but then not so much after they came in, in fact i actually wished i had been killed because i accidentally quickscoped a guy. and quickscoping gets rid of the balance that snipers are supposed to have, their big weakness is supposed to be that they aren't effective at long range, quickscoping gets rid of that weakness and makes the guns unbalanced
~manly man