Even on PC there's auto-aim. If there's something in the target bar, you're probably going to hit it if you fire. I don't actually mind that too much since when the enemy is far away, you're already aiming at it, and if it's up close, you really don't want to miss!
I do have to grumble about the maximum range, though. You can see enemies from quite a distance, but you can't hit them until you're in range, it does no damage, although it attracts attention.
