They do if they're out of control autonomous robot guns. If someone had told them not to put Vista on the friggin thing. I remember when I was in the Marines they wouldn't let anyone on deck or within several thousand yards of the ship when they turned on the CIWS Anti Aircraft system. It was a cute 10 foot tall version of R2D2 with a 20mm Vulcan gatling gun schlong. It had an autonomous mode to for shooting down antiship missles. Humans can't react fast enough to counter a russian AS missle the size of an f-16 doing mach 2. We got 2 storys from the squids as to why nobody could go outside when the thing was on. One, the radar was so powerful it could fry your gonads clean off. Or two, and the one I sort of believed, the thing is so twitchy it may start shooting at anything that's moving including you. I believe they've been replaced with missile systems now. http://blog.wired.com/defense/2007/10/r ... on-ki.html Robot Cannon Kills 9, Wounds 14 By Noah Shachtman October 18, 2007 | 11:00:00 AMCategories: Ammo and Munitions, Drones, Guns We're not used to thinking of them this way. But many advanced military weapons are essentially robotic -- picking targets out automatically, slewing into position, and waiting only for a human to pull the trigger. Most of the time. Once in a while, though, these machines start firing mysteriously on their own. The South African National Defence Force "is probing whether a software glitch led to an antiaircraft cannon malfunction that killed nine soldiers and seriously injured 14 others during a shooting exercise on Friday." SA National Defence Force spokesman brigadier general Kwena Mangope says the cause of the malfunction is not yet known... Media reports say the shooting exercise, using live ammunition, took place at the SA Army's Combat Training Centre, at Lohatlha, in the Northern Cape, as part of an annual force preparation endeavour. Mangope told The Star that it â€œis assumed that there was a mechanical problem, which led to the accident. The gun, which was fully loaded, did not fire as it normally should have," he said. "It appears as though the gun, which is computerised, jammed before there was some sort of explosion, and then it opened fire uncontrollably, killing and injuring the soldiers." Other reports have suggested a computer error might have been to blame. Defence pundit Helmoed-RÃ¶mer Heitman told the Weekend Argus that if â€œthe cause lay in computer error, the reason for the tragedy might never be found." The anti-aircraft weapon, an Oerlikon GDF-005, is designed to use passive and active radar, as well as laser target designators range finders, to lock on to "high-speed, low-flying aircraft, helicopters, unmanned aerial vehicles (UAV) and cruise missiles." In "automatic mode," the weapon feeds targeting data from the fire control unit straight to the pair of 35mm guns, and reloads on its own when its emptied its magazine. Electronics engineer and defence company CEO Richard Young says he can't believe the incident was purely a mechanical fault. He says his company, C2I2, in the mid 1990s, was involved in two air defence artillery upgrade programmes, dubbed Projects Catchy and Dart. During the shooting trials at Armscor's Alkantpan shooting range, â€œI personally saw a gun go out of control several times,â€ Young says. â€œThey made a temporary rig consisting of two steel poles on each side of the weapon, with a rope in between to keep the weapon from swinging. The weapon eventually knocked the pol[e]s down.â€ According to The Star, "a female artillery officer risked her life... in a desperate bid " to save members of her battery from the gun." But the brave, as yet unnamed officer was unable to stop the wildly swinging computerised Swiss/German Oerlikon 35mm MK5 anti-aircraft twin-barrelled gun. It sprayed hundreds of high-explosive 0,5kg 35mm cannon shells around the five-gun firing position. By the time the gun had emptied its twin 250-round auto-loader magazines, nine soldiers were dead and 11 injured.