The 20mm Land-Based Phalanx Weapon System (also called C-RAM) is a land-based variant of the U.S. Navy's Phalanx close-in weapon system, a radar-controlled rapid-fire gun for close-in protection of vessels from missiles. Both use a forward-looking infrared (FLIR) camera to allow their operators to visually identify incoming fire before opening fire. 70 rounds a second of pure ass-kickery!