Overwatch

You establish a kill zone consisting of any general area, such as a corridor or tree line, which encompasses a 45 degree arc in the direction that you are facing. You then specify Standard Attack, Full Auto Burst, or Semi-Auto Burst, along with the conditions under which you will perform the chosen attack. If the specified conditions are met before the start of your next turn, you can perform that attack. This attack occurs the moment the condition is met, such as an enemy entering the kill zone. If it occurs at the same time as another character’s action, the character with the higher Agility acts first. If both characters have the same Agility, they make an Opposed Agility test to see who acts first. After the attack is resolved, even if it does not succeed, targets must immediately make a Challenging (+0) Pinning test or become Pinned (see page 230) where they entered the kill zone. If a character on Overwatch performs any actions or Reactions, his Overwatch immediately ends. Note, this does not include Free Actions.