I have em16 and its a beast...i kill so many players with just one shot that is almost cheating. But im playing on PC where you can be very accurate with this weapon.
You can't be all that inaccurate with an auto-targeting weapon. There's a bunch of people well aware there's counter-play but I think it's inarguable at this point the weapon is so much stronger than others it demands you use it or lose. In other words, it's overpowered.