Faking Brutes

On the Sacred Icon (Level), sometimes on Heroic mode, where you fight an Enforcer, there will be a body of a Brute close to the plug locks. When you deactivate the containment shield and the platform you are on begins to move, look at the Brutes eyes. It will occasionally blink.

This is only one of the numerous times a body can seem "alive". If you have acquired the Sputnik Skull, and can find a body that blinks (namely Brutes), abuse the body by melee, and look closely at the eyes. It is speculated that the game engine believes it is still alive, making the lifeless body blink. By moving it so violently with a Sputnik/Melee attack, you can activate this glitch.

It may also be another programming error.