A new narrated trailer from Mass Effect 2 introduces the Sentinel class from BioWare's upcoming RPG sequel, accompanied by three Sentinel screenshots. We uploaded the clip to the YouTube, and here is a description: "Sentinels are truly unique, bringing both tech and biotic abilities to the battlefield. They are versatile and always equipped to deal with any situation. After overloading an enemy shield, Sentinels have no trouble throwing the opponent with their biotic powers. Additionally when battles become too heated, they can Cryo Freeze an enemy buying the Sentinel precious time eliminate foes or take cover. Sentinels are also equipped with the most advanced Tech Armor to keeping them safe in hostile situations. If overloaded, the system discharge and stun all enemies within a short distance. Learn more about the Sentinel in this Mass Effect 2 Sentinel Class feature video, where lead combat designer Christina Norman shows you the unique versatility of Mass Effect 2’s Sentinel class." Here's the embedded version.