Editing M9109 ASW/AC MLA

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{{Era|FOR|TF}}
{{Weapon
|image=[[Image:UNSC50mmdefenseguns.jpg|255px]]
|name=Point-Defense Gun
|manufacturer=[[UNSC]]
|model=
|type=
|cost=
|size=
|damage per hit=A fully shielded Seraph fighter can take over 200 rounds before sustaining any critical damage
|magazine=1200 rounds
|maxammo=4 magazines carried in each turret's internal rack
|fire=Gas-operated, magazine-fed
|ammotype=50mm High-Explosive shells
|operation=Computer/AI operated/loaded
|rate of fire=Standard 400rpm, maximum 1000rpm
|accuracy=At 250 meters, within one meter of target
|range=Maximum range: 800 meters/Optimum range: 250 meters
|era=2544-current day
|counterpart=Covenant Point Defense Laser
|counterwep=
|affiliation=[[UNSC]]
}}

A '''Point-Defense Gun''' is a [[United Nations Space Command]] starship-mounted weapon that fires 50mm High-Explosive<ref>''[[Halo: The Flood]]'', page 215</ref> projectiles.

The 50mm Point-Defense Gun functions much like the [http://www.en.wikipedia.org/wiki/CIWS CIWS] designs created during the 20th Century, firing 50mm projectiles. Unlike [[Archer missiles]] and the [[Magnetic Accelerator Cannon|MAC]] weapon systems mounted on capital ships, the Point-Defense Guns are ''not'' used to engage [[Covenant]] capital ships, instead meant to intercept incoming smaller attack crafts like [[Seraph]] fighters<ref>''[[Halo: The Fall of Reach]]'', page 272</ref> to prevent or, at least lessen, the damage inflicted to a warship equipped with these systems.

Because [[Human]] operators lack the reflexive responses necessary to operate the Point Defense Guns to maximum affect, the autocannons are computer controlled and, if an AI is available, control is diverted to it. "Smart" AI's seem better able to operate the Point-Defense Guns than standard computers and even lesser "dumb" AI's.<ref>''[[Halo: The Fall of Reach]]'', page 19</ref>

During the Human occupation of [[Alpha Halo]], the ODST's that recaptured and secured the wreckage of the UNSC [[UNSC Pillar of Autumn|Pillar of Autumn]] from the [[Covenant]] managed to scavenge<ref>''[[Halo: The Flood]]'', page 137</ref> several dual barreled <ref>''[[Halo: The Flood]]'', page 215</ref> 50mm turrets, using them as anti-air defensive emplacements at [[Alpha Base (Installation 04)|Alpha Base]]. These were ''not'' fitted to the [[Pelicans]] for use, as is speculated by some, but were carried underneath the dropships merely for the use of momentum. They were later installed outside the butte that the ODST had captured.

==Sources==
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