A l t F i r e ( )    Defined In:   Weapon    Called By:   Engine    Return Type:   None    Parameters:   float Value Called by the engine when the player presses the alt-fire button. D e s t r o y ( )    Defined In:   Actor    Called By:   Programmer    Return Type:   bool    Parameters:   None Used to destroy an actor in the Unreal world. It will return a bool value saying whether or not Unreal was able to destroy the actor. </