User blog comment:101stranger/Ah, the wonderful world of UNSC infantry weapons/@comment-1760854-20100404050556

To generate a supersonic shockwave you need a projectile, and the sonic booms size and power are proportional to the size, speed and shape of the projectile. Therefore, to make a shockwave one million times larger you would need the projectile to be the same size (at least 10 tons) and the projectile to move at a velocity of mach one million. the speed of light in mach units (incorrect use of the term, except as a frame of reference such as now) is only 872,093 ( http://answers.yahoo.com/question/index?qid=20070630053249AAv96IO ). and thats with a projectile weighing more than 10 tons. even for a spartan, that's a little bit too much to be carrying around. in short, 118 is both correct and incorrect. it is physically possible, but not tactically possible.