Marvel: Crisis Protocol Crashed Sentinel Terrain PackDescriptionSpecificationsShipping The mutant hunting creations of Doctor Bolivar Trask, the Sentinels are towering robotic enemies of all mutant kind. While they are technologically advanced and possess advanced energy weapons, the ability to fly, and sensors designed to track down mutants, they are not indestructible. Working together, a team can overpower and destroy these enormous machines. But the Sentinels learn from every engagement. With each