Editing Rampart point defense gun

{{Status|Canon}}
{{Disambig header|the line of point-defence weaponry used by the UNSC|other uses of the term "rampart"|rampart (disambiguation)}}
[[File:HINF Reverie M870Rampart 1.png|300px|thumb|An M870 Rampart PDG in the crash site of the {{Class|Mulsanne|light frigate}}, {{UNSCShip|Mortal Reverie}}.]]
The '''Rampart point-defense network''' is a line of [[point-defense gun]]s heavily utilised by the [[warship]]s of the [[CMA Navy]] and [[UNSC Navy]]. They are one of the most commonly-utilised point-defence weapons in naval service, with multiple models in service.{{Ref/Site|Id=WaypointFrigate|URL=https://www.halowaypoint.com/en-us/universe/vehicles/unsc-frigate|Site=Halo Waypoint|Page=UNSC Frigate|D=30|M=06|Y=2021}} 

==Overview==
===Design details===
[[File:Point guns firing.jpg|thumb|250px|Armoured dual-gun M870 Ramparts aboard the {{Class|Paris|heavy frigate}} {{UNSCShip|Savannah}} firing during [[Operation: UPPER CUT]].]]
Ramparts are 50mm [[coilgun]]s used for the purposes of point-defence. Due to the sheer speed that [[space warfare]] takes place at, targeting inbound missiles and [[space fighter]]s is impossible for a [[human]] operator.{{Ref/Book|Id=Warfleet19|HWF|Page=19}} As such, Ramparts are generally fully-automated and controlled by a ship's [[artificial intelligence]] - though control can be surrendered to manual operation if deemed necessary.{{Ref/Level|Id=HFREscape|HFR|Escape (Halo: Fireteam Raven level)|Escape}}

A single Rampart turret consists of twin-{{Ref/Game|H3|''Charon''-class frigate in-game model}} or quad-mounted 50mm{{Ref/Reuse|WaypointFrigate}} rapid-fire coilguns and a targeting scanner.{{Ref/Reuse|Warfleet 39}} Some models may be additionally fitted with a boxy armoured housing surrounding the gun mechanisms, while other models lack the housing entirely.

Point defense guns such as these are used for the engagement of incoming threats, including the warding off of strikecraft and the disruption of [[plasma torpedo]]es;{{Ref/Reuse|Warfleet19}} each emplacement actively switches between sub-caliber armor-piercing sabots or proximity detonation fragmentation shells based on a threat-analysis of its current target in order to maximise effectiveness.{{Ref/Book|Id=Warfleet 39|HWF|Page=39}}

==Models==
===M800 Rampart===
The '''M800 Rampart point defense gun''' is a kinetic [[point-defense gun]] utilized by the [[UNSC Navy]]. The refitted {{Class|Phoenix|colony ship|support ship}} {{UNSCShip|Spirit of Fire}} is armed with forty of these turrets.{{Ref/Book|Id=Warfleet|HWF|Page=48-49}}

===M870 Rampart===
[[File:HW assets M870 Rampart turret.png|thumb|250px|Quad-mount M870s on the {{Class|Strident|heavy frigate}}.]]
M870s are most commonly mounted on lighter vessels of the [[UNSC Navy]] and [[CMA Navy]], particularly [[UNSC corvette|corvettes]] and [[UNSC frigate|frigate]]s.  They also see some use on [[UNSC destroyer|destroyers]] and [[UNSC carrier|carriers]], with no known usage on [[cruiser]]s and [[supercarrier]]s. They are primarily employed on the warships constructed between the late-[[:Category:24th century|24th century]] and early [[:Category:26th century|26th century]], with their earliest known usage being on the {{Class|Mako|corvette}}, launched in [[2388]].{{Ref/Book|Id=Enc22Corvettes|Enc22|Page=128-129}} They seem to have been mostly succeeded aboard larger and more modern ships by the [[M910 Rampart point defense network|M910 Rampart]] model, which began to see service aboard the {{Class|Valiant|super-heavy cruiser}} in [[2493]]{{Ref/Book|Enc22|Page=118}}

Despite this, the M870 did see constant usage as a common fixture in the [[Human-Covenant War]] of the early-mid 26th century, and a handful of [[Post-Covenant War conflicts|post-war era]] vessels have made use of it.

;Stations
*[[Refit station]] - [[Seven|7]]x M870 Ramparts{{Ref/Game|HR|[[Anchor 9]] in-game model has 7 point-defence turrets of the same design as the ''Paris'' frigate's M870s}}

;Carriers
*{{Class|Epoch|heavy carrier}} - 12x M870 Ramparts{{Ref/Book|Id=Warfleet 40|HWF|Page=40}}{{Ref/Book|Id=Enc22Carriers|Enc22|Page=127}}
*{{Class|Orion|assault carrier}} - 12x M870 Ramparts{{Ref/Reuse|Enc22Carriers}}
*{{Class|Poseidon|light carrier}} - 20x M870 Ramparts{{Ref/Reuse|Enc22Carriers}}

;Destroyers
*{{Class|Able|heavy destroyer}} 2525 refit - 8x M870 Ramparts{{Ref/Site|Id=CFDigsite|URL=https://www.halowaypoint.com/news/canon-fodder-digsite-dissection|Site=Halo Waypoint|Page=Canon Fodder - Digsite Dissection|D=28|M=07|Y=2023}}
*{{Class|Hillsborough|heavy destroyer}} - 7x M870 Ramparts{{Ref/Book|Id=Enc22Destroyers|Enc22|Page=124-125}}
*{{Class|Halberd|light destroyer}} - 4x M870 Ramparts{{Ref/Reuse|Enc22Destroyers}}{{Ref/Book|Id=Warfleet 32|HWF|Page=32}}

;Frigates
*{{Class|Charon|light frigate}} - 4x M870 Ramparts{{Ref/Site|Id=Bulletin 10.10.12|URL=http://blogs.halowaypoint.com/Headlines/post/2012/10/10/The-Halo-Bulletin-101012-.aspx|Site=Waypoint|Page=The Halo Bulletin: 10.10.12|D=30|M=03|Y=2013}}{{Ref/Book|Id=Enc22Frigates|Enc22|Page=120-123}}
*{{Class|Mulsanne|light frigate}} - 12x M870 Ramparts{{Ref/Reuse|Enc22Frigates}}
*{{Class|Paris|heavy frigate}} - 12x M870 Ramparts{{Ref/Reuse|Enc22Frigates}}
*{{Class|Stalwart|light frigate}} - 6x M870 Ramparts{{Ref/Reuse|Enc22Frigates}}{{Ref/Book|Id=Warfleet 37|HWF|Page=37}}
*{{Class|Strident|heavy frigate}} - 6x M870 Ramparts{{Ref/Reuse|Enc22Frigates}}{{Ref/Reuse|Warfleet 39}}

;Corvettes
*{{Class|Gladius|heavy corvette}} - 6x M870 Ramparts{{Ref/Reuse|Warfleet19}}{{Ref/Reuse|Enc22Corvettes}}
*{{Class|Mako|corvette}} - 2x M870 Ramparts{{Ref/Reuse|Enc22Corvettes}}
*{{Class|Scholte|missile corvette}} - 4x M870 Ramparts{{Ref/Site|Id=CFFoundations|URL=https://www.halowaypoint.com/news/canon-fodder-foundations|Site=Halo Waypoint|Page=Canon Fodder - Foundations|D=12|M=01|Y=2022}}

;Prowlers
*{{Class|Razor|prowler}} - 2x M870 Ramparts{{Ref/Reuse|Enc22Corvettes}}

===M910 Rampart===
[[File:HWF_M910Rampart_PDG.png|thumb|250px|An M910 Rampart PDG mounted atop {{UNSCShip|Pillar of Autumn}}.]]
The M910 Rampart is a heavier alternative in the Rampart series of point-defense guns, primarily outfitted on the heavy warships of the UNSC; [[cruiser]]s and [[battleship]]s. It was in service as early as [[2493]] aboard the {{Class|Valiant|super-heavy cruiser}} and was later a standard installment on successor cruiser classes - with the notable exception of the {{Class|Marathon|heavy cruiser}}. The foremost exception to the trend of M910s installed on large combatants is the usage of the M910 aboard the {{Class|Point Blank|prowler}}, a stealth warship class often itself nicknamed a "stealth cruiser".

For smaller combatants and carriers, the [[M870 Rampart point defense gun|M870 Rampart]] is often used in a similar role. On at least the {{Class|Halcyon|light cruiser}}, the M910 Rampart is capable of being interchangeably replaced with the [[M810 Helix point defense gun]].{{Ref/Reuse|Enc22Cruisers}} It is unknown whether this capability extends to the rest of the fleet; if so, the M910 may also be capable of being fit onto the ships listed [[M810 Helix point defense gun#Usage|here]].

;Battleships
*{{Class|Vindication|light battleship}} - 20x M910 Ramparts{{Ref/Reuse|Enc22Destroyers}}

;Cruisers
*{{Class|Autumn|heavy cruiser}} - 6x M910 Ramparts{{Ref/Book|HWF|Page=26-27}}{{Ref/Book|Id=Enc22Cruisers|Enc22|Page=118-119}}
*{{Class|Valiant|super-heavy cruiser}} - 50x M910 Ramparts{{Ref/Reuse|Enc22Cruisers}}
*{{Class|Halcyon|light cruiser}} - 40x M910 Ramparts (optional; can be replaced with [[M810 Helix point defense gun|M810 Helix]] PDGs instead){{Ref/Reuse|Enc22Cruisers}}
**{{UNSCShip|Pillar of Autumn}} refit - 18x M910 Ramparts{{Ref/Book|HWF|Page=24-25}}

;Prowlers
*{{Class|Point Blank|prowler}} - 20x M910 Ramparts{{Ref/Book|Id=Enc22Prowler|Enc22|Page=128}}

==Production notes==
The Rampart PDNs have had a fairly inconsistent appearance throughout the various visual media they have appeared in. This is due to the naval armaments' lore being written long after most of the spacecraft artwork was made for the original ''Halo'' games. In general, this article preferences the depictions covered in the [[2017]] starships reference guide ''[[Halo: Warfleet – An Illustrated Guide to the Spacecraft of Halo]]'', due to its exclusive and dedicated focus on naval weapons and several pieces of artwork designed to feature them.

Of particular note is an inconsistency present in ''[[Halo: Fireteam Raven]]''{{'}}s first level, [[Escape (Halo: Fireteam Raven level)|Escape]], and its third level [[Alpha Base (Halo: Fireteam Raven level)|Alpha Base]]. During these levels, a heavily-armoured weapon mount is called out as an M910 Rampart turret for use by the player for shooting down enemy fighters. In reality, this weapon uses the model of the [[Sentry autocannon|Sentry]] and [[Spitfire naval coilgun battery|Spitfire]] models of [[naval autocannon]], and should note be taken as canonically-accurate. ''Halo: Warfleet''{{'}}s page on {{UNSCShip|Pillar of Autumn}} provides a more true-to-form depiction of an M910, featured above in this article.

==Gallery==
===M870 Rampart===
<gallery>
File:H3 - M870 Rampart.JPG|Two of the M870 Rampart point defense guns on the {{UNSCShip|Forward Unto Dawn}} in ''[[Halo 3]]''; one on the dorsal surface and one on the ventral surface.
File:HTMCC-H3 FuD M870Rampart 1.png|A view of dorsal M870 Rampart point defense gun on the {{Class|Charon|light frigate}} in ''Halo 3''.
File:HTMCC-H3 FuD M870Rampart 2.png|A view of dorsal M870 Rampart point defense gun on the ''Charon''-class light frigate in ''Halo 3''.
File:HTMCC-H3 FuD M870Rampart 3.png|A view of ventral M870 Rampart point defense gun on the ''Charon''-class light frigate in ''Halo 3''.
File:Anchor9turret.jpg|An M870 Rampart mounted aboard ''[[Anchor 9]]'', a [[refit station]] orbiting [[Reach]].
File:M870 Rampart.jpg|A non-canon depiction of M870 Rampart point defense guns on the ''Halo 4'' design of the UNSC ''Forward Unto Dawn''.
File:HINF Reverie M870Rampart 2.png|A view of M870 Rampart point defense gun on the {{UNSCShip|Mortal Reverie}} in ''Halo Infinite''.
File:HINF Reverie M870Rampart 3.png|A frontal view of M870 Rampart point defense gun on the UNSC ''Mortal Reverie'' in ''Halo Infinite''.
File:HINF Panama M870Rampart.png|Low-resolution depiction of the M870 Rampart point defense guns on the {{UNSCShip|Panama}} in ''Halo Infinite''.
</gallery>

===M910 Rampart===
<gallery>
File:HFR M910 Rampart.jpg||A non-canon depiction of an M910 in ''Halo: Fireteam Raven'', using the design of a larger naval coilgun battery.
File:HFR_Alpha_Base_2.png|An M910, detached from the ''Pillar of Autumn'' defending Alpha Base.
</gallery>

==List of appearances==
*''[[Halo: The Flood]]'' {{1st}}
*''[[Halo 2]]''
*''[[Halo 3]]''
*''[[Halo 3: ODST]]''
*''[[Halo Legends]]''
**''[[Origins]]'' 
*''[[Halo: Reach]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4: Forward Unto Dawn]]''
*''[[Halo 4]]'' 
**''[[Spartan Ops]]''
*''[[Halo 2 Anniversary]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo Infinite]]''
*''[[Halo: The Rubicon Protocol]]''

==Sources==
{{Ref/Sources}}
{{UNSC heavy weapons}}
[[Category:Autocannons]]
[[Category:UNSC naval weapons]]