When enemies attempt to engage the player, they will attempt to avoid obstacles (including other enemies) in order to reach them. When hidden by various means such as by the use of Shade, Loki's Invisibility, or Ash's Smoke Screen, enemies will only know the players location by the sound of their weapons. If they are silenced or by using Hushed Invisibility, the enemies may attempt to find cover or run toward the player but still will not know exactly where they are.