Aim Assist

Aim Assist
Aim Assist is an option in the "Game Options" that helps the player to aim by slightly locking on to enermies. When the player positions the crosshair over an enermy the Aim Assist helps keep it in place by automatically adjusting the aim as the player and enermy move "Sticky Aim".

Console games often have some kind of auto aim because aiming is alot harder using control pads then it is using a mouse, also many people that play on consoles are casual gamers. Games released on all platforms often carry the auto aim on to the pc version aswell.