Like Wolffe he don´t Execute Order 66 and Run his Half Life (Half-Life?)From the Empire. MITO3D RANKING LATEST MOST POPULAR PRICE HIGH-LOW PRICE LOW-HIGH. 2) altered the stormtrooper helmet model by taking just the rebreather part. Before placing an order, be sure to check the sizes! Size: the helmet is designed for a head with a circumference of 56 to 62 cm.