Once per round, you may attempt to aimAim allows you to bypass 1/2 AV with a Successful Spot. Once... More an attack that will hit a specific part of target. An aimedAim allows you to bypass 1/2 AV with a Successful Spot. Once... More attack is DifficultYour skill is halved when a task is harder than average, whi... More by default. With a successful Heroic Action (Spot, Sense) you can aimAim allows you to bypass 1/2 AV with a Successful Spot. Once... More, and your attack is at your standard skill rating.
An aimedAim allows you to bypass 1/2 AV with a Successful Spot. Once... More shot can do one of two things: It may negate 1/2 AVThe numeric value representing how much damage armor absorbs... More of worn armor*. Or it can target a specific part of the body. This can have many effects, and it is up to the player and SG to determine the effect.
*Some creatures have natural AVThe numeric value representing how much damage armor absorbs... More, so bypassing it would only happen if they have known weak spots. AVThe numeric value representing how much damage armor absorbs... More is rounded up.