M8 Grizzly Medium Assault Walker the first truly practical walker designed using Rift technology; the Grizzly is a watchword in rugged and practical design. Armed with the proven 75mm gun and a .50 HMG, the Grizzly is versatile and adaptable. More useful are perhaps the powerful arms that can smash tanks and clear obstacles. Well-liked by its crews, the Grizzly is considered a better infantry support option than the Sherman, particularly in urban environments where it can carry out improvised route clearance and help build defensive obstacles.