Editing Seven

{{Status|RealWorld}}
{{References}}
{{Quote|Some of you may be wondering - "What's up with this unhealthy obsession with the number 7?"  This page offers ''some'' insights.|[[Brian Jarrard]], linking to this very page<ref>[https://web.archive.org/web/20141013232059/http://halo.bungie.net/News/content.aspx?cid=14650'''Bungie.net''': ''Bungie Day Tribute'']</ref>}}
{{Quote|Cause that's the best number. It's like rock. Nothing beats rock or 7.|[[Michael Wu]]}}
<div style="float:right; clear:right; padding:0 7px;"><span style="font-size:343px; font-family:'Times New Roman, Arial, Helvetica';">7</span></div>
[[Bungie]] has long enjoyed using the number '''seven''' ('''7''') in its games in many prominent ways.<ref>[http://marathon.bungie.org/story/seven.html '''Marathon.Bungie.Org''': ''The Number Seven'']</ref> [[Ensemble Studios]] and authors also have certain obvious seven references in their works about ''Halo''. While almost anything can be made into a reference to something with effort or constructed accidentally through [[wikipedia:pareidolia|pareidolia]], the following attempts to list the intentional references Bungie placed into ''Halo'' for the fans to find. As such, not all of these references may be fully accurate, and many of them may be proven to be false at any time. Bungie's obsession with the number seven may be attributed to 7 being considered a lucky number in Western culture. In spite of the fact that the number seven is featured extensively in Bungie's work, it has generated an aura of [[wikipedia:apophenia|apophenia]]. This cultural nuance can be compared to the [[wikipedia:23 enigma|23 enigma]].

After [[Halo Studios]] (then 343 Industries) took over the ''Halo'' franchise in 2011, references to 7 have continued, possibly as a homage to Bungie.

== ''Halo: The Fall of Reach'' (and ''Halo: Fall of Reach'') ==
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*[[Lieutenant, Junior Grade]] [[Jacob Keyes]] graduated from UNSC OCS '''7''' weeks before being assigned to observe SPARTAN-II candidates with Dr. Halsey{{Ref/Novel|Id=TFoR1|TFoR|Chapter=1}}
*During Keyes's second year at OCS he was involved in an incident which killed fourteen [[Ensign]]s.{{Ref/Reuse|TFoR1}} 14/2='''7'''
*John attended [[Elysium City Primary Education Facility Number 119]] before being abducted for the [[SPARTAN-II Program]].{{Ref/Novel|Id=TFoR2|TFoR|Chapter=2}} 119/7=17, 1x7='''7'''.
*John's SPARTAN tag is 117 (1x1x7='''7''').{{Ref/Reuse|TFoR2}}
*Samuel's SPARTAN tag is 034 (0+3+4='''7''').{{Ref/Novel|Id=HTFOR4|HTFOR|Chapter=4}}
*Deja showed the children a hologram of a meadow with '''7''' wolves hunting a moose.<ref>'''Halo: The Fall of Reach''', ''page 43''</ref>
*On October '''7''', 2525, three [[UNSC]] vessels were sent to investigate why the [[Colonial Administration Authority]] had lost contact with the [[Harvest]] system. 2+5=7<ref>'''Halo: The Fall of Reach''', ''page 96''</ref>
*The Medical Facility "Hopeful" was gone for '''7''' days.{{citation needed}}
*The human colony [[Jericho VII]] is introduced. VII = '''7''' in Roman Numerals. 
*A UNSC [[UNSC destroyer|destroyer]] was only '''7''' meters longer than a [[UNSC frigate|frigate]].<ref>'''Halo: The Fall of Reach''', ''page 139''</ref>
*[[Lieutenant]] [[Hall]] has written '''7''' physics papers on Slipspace communications.<ref>'''Halo: The Fall of Reach''', ''page 140''</ref>
*Four [[Covenant]] frigate ships are an even match with '''7''' UNSC destroyers.<ref>'''Halo: The Fall of Reach''', ''page 144''</ref>
*Hall reports a collision in '''7''' seconds.<ref>'''Halo: The Fall of Reach''', ''page 149''</ref>
*After the {{UNSCShip|Cradle}} sacrificed itself, the rest of the fleet destroyed '''seven''' Covenant ships with their MAC volley fire.<ref>'''Halo: The Fall of Reach''', ''pages 192-193''</ref>
*Jacob Keyes could only count '''7''' UNSC vessels still intact after the [[Battle of Sigma Octanus IV]].<ref>'''Halo: The Fall of Reach''', ''page 199''</ref>
*When the SPARTANs test the MJOLNIR suit with shields, when John-117 gets ready to go outside there are '''7''' [[Orbital Drop Shock Trooper|ODST]]s standing outside around the tent.<ref>'''Halo: The Fall of Reach''', ''page 257''</ref>
*The {{UNSCShip|Pillar of Autumn}} carried '''7''' [[C709 Longsword-class Starfighter]]s.{{citation needed}}
*'''7''' Covenant frigates were pursuing the ''Pillar of Autumn''.{{Ref/Novel|TFoR|Chapter=Epilogue}}
*On page 11 of ''[[Halo: Fall of Reach - Boot Camp]]'', Halsey is seen looking at a hologram of John-117's physique, with a few genes labeling around it. Each of these labels are '''seven''' nucleotides long.
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==''Halo: Combat Evolved'' (and ''Halo: The Flood'')==
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*In the first cutscene, [[Cortana]] is confident that the Autumn will destroy 3 covenant ships, but quickly changes her answer to 4. 3+4=7
*When the Chief's shield is down, it takes fourteen seconds to fully recharge - '''seven''' seconds while the shield flash red, and '''seven''' seconds while recharging.
*Master Chief (and some Marines) board [[SKT-9 Bumblebee|lifeboat]] #52. 5+2='''7'''
*At the beginning of the [[CE:Halo|second level]], there are '''seven''' dead bodies around John-117 (six [[UNSC Marine Corps|marines]] and the [[bumblebee|lifeboat]] pilot).
*On the level "[[CE:The Silent Cartographer|The Silent Cartographer]]," at [[Bravo 022]]'s crash site, there is a fully loaded rocket launcher (the first in the game) and '''7''' spare rockets.
*At the beginning of "The Silent Cartographer," John-117 stormed the beach with '''seven''' marines.
*There are '''14''' [[Mamua'uda-pattern Shade|Shade]] turrets on the [[campaign]] level ''[[CE:The Truth and Reconciliation|Truth and Reconciliation]]''. 14/2='''7'''.
*In the cavern with the bridge in the level "[[CE:Assault on the Control Room|Assault on the Control Room]]", there are '''seven''' dead marines as well as some dead Covenant troops.
*[[Installation 04]]'s [[monitor]], [[343 Guilty Spark]] is introduced. His name is derived from the value 343, which equals to '''7'''<sup>3</sup>.
*There are '''7''' [[blast door]]s leading to the [[Activation index]] in the [[Library]].
*On the level ''[[CE:Keyes|Keyes]]'', once the Chief gets back into the Gravity Lift bay, there are '''7''' dead Grunts around.
*The [[Proto-Gravemind]] has '''7''' tentacles.
*There are four 7 references at once in the final Warthog run:
**After destroying the fusion core on the ''Pillar of Autumn'', Master Chief drives a [[M12 Light Reconnaissance Vehicle|Warthog]] through a Class '''7''' service corridor.{{Ref/Level|Id=maw|CE|CE:The Maw|The Maw}}
**Cortana plans a pick-up from Echo-419 at External Junction 4-C. 4 + 3 (C) = 7
**The last Longsword on the ''Pillar of Autumn'' was in [[Launch Bay 7|Launch Bay '''7''']].{{Ref/Reuse|maw}}
**Cortana's warns the Chief about the gap in the trench starts when he is '''7'''00 meters away from Launch Bay 7.{{Ref/Reuse|maw}}
*On [[Easy]] difficulty, it takes exactly '''7''' shots from a [[Type-25 plasma pistol|plasma pistol]] or a [[Okarda'phaa-pattern plasma rifle|plasma rifle]] to kill a [[Sangheili]].
*It takes at least '''seven''' needles from the [[Type-33 needler|Needler]] to make an explosion.
*On the third page of the manual explaining the HUD (page 15), a screenshot with an explanation of the scope shows '''7''' extra bullets in the sniper rifle.
*In the [[Halo: Combat Evolved: Sybex Official Strategies & Secrets|Sybex official strategy guide]], in the designer tips for one of the multiplayer maps it is said the survival rate on the bottom of the map is around '''7''' seconds<ref>'''Halo: Combat Evolved: Sybex Official Strategies & Secrets''', ''page ??''</ref>
*[[Carol Rawley|Carol "Foe Hammer" Rawley]] is part of a group of '''7''' people (3 pilots, 3 ground crew, and herself) who fled the ''Pillar of Autumn'' by retrieving their Pelicans rather than taking lifeboats.{{Ref/Novel|TF|Chapter=1}}
*"Twelve shots rang out, and '''seven''' Grunts fell."{{Ref/Novel|TF|Chapter=2}}
*Chapter '''7''' of ''Halo: The Flood'' has the mission time listed as '''7''' cycles ('''49''' units) [[Covenant]] time. 49 = 7<sup>2</sup>{{Ref/Novel|Id=TF7|HTF|Chapter=7}}
*Silva wishes he had '''7''' Lt. McKay's.{{Ref/Reuse|TF7}}
*All the terminals' number codes on the Pillar of Autumn have a '''7''' on them.{{citation needed}}
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==''Halo: First Strike''==
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*There are '''7''' Covenant ships in the system after Halo's destruction.<ref name="fs36">'''Halo: First Strike''', ''page 36''</ref>
*The Covenant flagship ''[[Ascendant Justice]]'' has '''seven''' plasma turrets.{{Ref/Reuse|fs36}}
*After Corporal [[Locklear]] brings the ammo up from the [[Pelican]], there are '''seven''' grenades in the crate.<ref>'''Halo: First Strike''', ''page 53''</ref>
*Cortana describes subsection '''seven''' of the Cole Protocol as the reason they cannot immediately return to Earth aboard ''Ascendant Justice''.<ref>'''Halo: First Strike''', ''page 94''</ref>
*After [[Fred]] and [[Kelly]] steal two [[Wraith]]s, they destroy '''seven''' other Wraiths.<ref>'''Halo: First Strike''', ''page 114''</ref>
*There are '''seven''' doors leading to adjacent offices and surgical bays when Dr. Halsey first enters the medical wing of [[CASTLE Base]].<ref>'''Halo: First Strike''', ''page 122''</ref>
*As she is deleting Araqiel, Dr. Halsey taps the level '''seven''' security barriers.<ref>'''Halo: First Strike''', ''page 127''</ref>
*The ''Ascendant Justice'' exits Slipspace '''seven'''  hundred thousand kilometers from the Epsilon Eridani System center.<ref>'''Halo: First Strike''', ''page 154''</ref>
*CPO Mendez was scheduled to meet the Spartans 0'''7'''00 hours after they captured the flag from Tango Company.<ref>'''Halo: First Strike''', ''page 165''</ref>
*There were '''seven''' [[Robotic rover|service drones]] aboard the ''[[Gettysburg]]''.<ref>'''Halo: First Strike''', ''page 208''</ref>
*After John-117 leaves the medical room Dr. Halsey is in, she instructs Cortana to lock the door and "boost counter-intrusion measures to level '''seven'''." <ref>'''Halo: First Strike''', ''page 246''</ref>
*[[Admiral Danforth Whitcomb]] bluffs [[Governor Jacob Jiles]] by saying they had '''7''' working plasma turrets.<ref>'''Halo: First Strike''', ''page 262''</ref>
*The dead crew of the ''Gettysburg'' is placed in cargo bay '''seven'''.<ref>'''Halo: First Strike''', ''page 268''</ref>
*After exiting slipspace in a captured Covenant dropship, the Spartans find themselves near two hundred forty-seven Covenant ships. As they are watching, '''seven''' more appear.<ref>'''Halo: First Strike''', ''page 298''</ref>
*The Master Chief sets his [[Lotus anti-tank mine]] detonator for '''seven''' seconds.<ref>'''Halo: First Strike''', ''page 314''</ref>
*C-'''7''' foaming explosive is used by the Spartans and Locklear.<ref>'''Halo: First Strike''', ''page ??''</ref>
*Lieutenant Haverson orders Polaski to lock onto the signal source in course 2-3-0 by 1-1-0 (2+3+0+1+1+0='''7''').{{Ref/Novel|Id=HFSC19|HFS|chapter=19}}
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==''Halo: Ghosts of Onyx''==
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* The [[SPARTAN-III program|SPARTAN-IIIs]] of [[Beta Company]] had been launched from [[Slipspace]] '''seven''' hours previous.{{Ref/Novel|Id=GoOP|GoO|Prologue}}
* '''Seven''' Covenant cruisers appear during [[Operation TORPEDO]].{{Ref/Reuse|GoOP}}
* "'''Seven''' other men sat at a card table, shaking off the effects of the flash-bangs."{{Ref/Novel|GoO|Chapter=1}}
* "Three hundred Spartans hit the dirt at 0'''7'''00."{{Ref/Novel|Id=GoO8|GoO|Chapter=8}}
* The target of [[Operation: PROMETHEUS]] was asteroid [[K7-49|K'''7'''-49]].{{Ref/Reuse|GoO8}} 7<sup>2</sup>=49
* After two days the Spartan-III's of Alpha Company had managed to disable '''7''' of the reactors.{{Ref/Reuse|GoO8}}
* "On day '''seven'''," the Admiral said, "additional Covenant reinforcements arrived."{{Ref/Reuse|GoO8}}
* Kurt trained the Spartan-III's of Alpha Company for '''7''' years.{{Ref/Reuse|GoO8}}
* "We are presently '''seven''' kilometers over the planet's surface," the AI said.{{Ref/Novel|GoO|Chapter=17}}
* Before casualties, there were '''7''' active Spartan-III's on Onyx ([[Tom]], [[Lucy]], and Team Saber).{{Ref/Novel|GoO|Chapter=20}}
* "What [[Sangheili]] Major would dare disobey a [[Ship Master]] who had led '''seven''' glorious campaigns against their enemies?"{{Ref/Novel|GoO|Chapter=22}}
* After boarding [[Bloodied Spirit]] Fred's MJOLNIR suit has only '''seven''' minutes of air remaining.{{Ref/Novel|GoO|Chapter=24}}
* When Bloodied Spirit is attacked by Onyx Sentinels, the Sentinels move into lines of '''seven'''. '''Seven''' of these lines then combine into an elongated triangle and fire.{{Ref/Novel|GoO|Chapter=26}}
* Chapter 27 begins at the '''seventh''' cycle, 49 units, Covenant time. 7<sup>2</sup>=49.{{Ref/Novel|Id=GoO27|GoO|Chapter=27}}
* The [[Unggoy]] [[Kwassass]] had served '''seven''' years in the Covenant.{{Ref/Reuse|GoO27}}
* The structure where the Spartans land is a '''seven'''-sided faceted dome with '''seven''' arches. Inside are '''seven''' flat surfaces, each the size of carrier landing decks.{{Ref/Novel|Id=GoO30|GoO|Chapter=30}}
* "It will take '''seven''' minutes in this orbit to cover that area."{{Ref/Novel|Id=GoO32|GoO|Chapter=32}}
* "'''Seven''' MAC rounds struck the two lead destroyers in the Covenant line…"{{Ref/Reuse|GoO32}}
* "The bulbous hull of a Covenant Seraph single ship appeared, then another Seraph appeared, then '''seven''' more…"{{Ref/Novel|Id=GoO33|GoO|Chapter=33}}
* "The '''seven''' Sentinels adjusted their aim and their spheres glowed red, amber, and then glistening gold."{{Ref/Novel|GoO|Chapter=34}}
* Dr. Halsey said the portal would close in 1 hour, 17 minutes, this is equal to '''77''' minutes.{{Ref/Reuse|GoO33}}
* The teleportation pads around Onyx are '''seven'''-sided.{{Ref/Reuse|GoO33}}
* "Shockwave from surface detonation impacting far side of the moon in '''seven''' seconds," Durrono said.{{Ref/Novel|GoO|Chapter=41}}
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==''Halo 2''==
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* In the [[Halo 2 announcement trailer]], when Master Chief walks in to hangar and launches himself into space, above the door to the hangar is labelled "A-0'''7'''". 
* There is a faint '''7''' on the MJOLNIR Mark IV helmet.{{verify}}
* There is a clearly visible '''7''' scratched into the left cheek of [[Miranda Keyes]].
* Sergeant [[Banks]]' communicator is engraved with the Hindi word for '''7''', written in the Hindi script.
* When the {{UNSCShip|In Amber Clad}} was in the Battle of Earth numerous units from the '''77'''th Marine Regiments are on board.
* The ODSTs seen in-game belong to the [[7th Shock Troops Battalion|'''7'''th Shock Troops Battalion]].
* There is a '''7''' on the lower part of a Pelican's ramp.
* [[Installation 05]]'s monitor, [[2401 Penitent Tangent]] is introduced: 2401 is '''7'''<sup>4</sup>. It can also be read as 2+4+0+1='''7'''.
* The [[Gravemind]] speaks mostly in heptameter, a poetic style with '''7''' meters per line.
* In ''Halo 2'', there are '''7''' Covenant races seen: [[Unggoy]], [[Kig-yar]], [[Yanme'e]], [[Mgalekgolo]], [[Jiralhanae]], [[Sangheili]], and [[San'Shyuum]].
* In ''Halo 2'', there are '''7''' Covenant vehicles: Ghost, Spectre, Wraith, {{Pattern|Ruwaa|Shadow}}, Banshee, [[Kez'katu-pattern Phantom|Phantom]] and the [[Protos-pattern Scarab|Scarab]].
* The symbol on the Banshees' wings is made up of '''7''' red blocks.
* '''7''' hexagons make up the zoomed targeting reticule of the [[Vostu-pattern carbine|Covenant Carbine]].
* Firing the {{Pattern|Okarda'phaa|plasma rifle}} until it overheats will drain '''7''' power units, assuming it is not burst fire.
* Firing the [[Sentinel beam]] until it overheats will leave a remaining charge of '''77'''.
* There are '''7''' drivable vehicles in the game: the [[M808B Main Battle Tank|Scorpion]], [[Zurdo-pattern Wraith|Wraith]], [[Wuzum-pattern Spectre|Spectre]], [[M12 Light Reconnaissance Vehicle|Standard Warthog]], [[M12G1 Light Anti-Armor Vehicle|Gauss Hog]], [[Type-32 Rapid Assault Vehicle|Ghost]], and [[Type-26 Ground Support Aircraft|Banshee]].
* In the [[Halo 2 (Windows Vista)|''Halo 2'' for Windows Vista]], the "[[Silent But Deadly]]" [[Achievement]] requires the player to kill '''7''' enemies from behind without being spotted.
* The player fights in '''7''' levels as the Master Chief: ''[[H2:Cairo Station|Cairo Station]]'', ''[[H2:Outskirts|Outskirts]]'', ''[[H2:Metropolis|Metropolis]]'', ''[[H2:Delta Halo|Delta Halo]]'', ''[[Regret]]'', ''[[H2:Gravemind|Gravemind]]'' and ''[[H2:High Charity|High Charity]]''.
* [[Cairo Station]]'s serial number '''ODA-142''' contains a possible '''7''' reference (1+4+2='''7'''). 
* The {{UNSCShip|In Amber Clad}}'s [[Hull Classification Symbol]] is '''FFG-142''', which is a possible '''7''' reference. (1+4+2='''7''').
* The Covenant [[antimatter charge]] that was brought onboard Cairo Station took '''7''' seconds to detonate.{{Ref/Level|H2|H2:Cairo Station|Cairo Station}}
* In ''[[H2:Outskirts|Outskirts]]'', a sign bearing the number '''7''' can be found nailed to the wall near the [[H2:Skulls#Blind|Blind Skull]].
* On ''Outskirts'', in the small dark room where the [[H2:Skulls#I Would Have Been Your Daddy (IWHBYD)|IWHBYD skull]] is located, there is a number '''7''' on the wall.
* To obtain the IWHBYD skull, one must face '''7''' waves of Sangheili Ultra, with '''7''' Sangheili in the '''7th''' wave.
* In the level ''Outskirts'', there is a total of '''7''' Shadows.
* There are '''7''' Phantoms in the levels ''Outskirts'' and ''Metropolis'' combined.
* Throughout the levels ''Outskirts'' and ''Metropolis'' the player can find numerous cases of [[VX 7 nerve gas|VX '''7''' nerve gas]].
* There are '''7''' levels of caskets in the [[Mausoleum of the Arbiter]].{{Ref/Level|H2|H2:The Arbiter|The Arbiter}}
* In the level [[H2:Delta Halo|Delta Halo]] there are '''7''' dead ODSTs scattered throughout the level.
* In a deleted scene, a longer version of the cutscene at the start of ''Sacred Icon'', Truth and the Arbiter were viewing '''7''' murals that showed how the Covenant had grown.
*In the level [[H2:Sacred Icon|Sacred Icon]] there is a hidden [[Type-33 needler|needler]] in the room where the player encounters the first [[Enforcer Sentinel|enforcer sentinel]]; this needler has 1 round loaded with 6 rounds in reserve, totaling '''7''' rounds. 
* In the campaign level ''Gravemind'', Cortana picks up a total of '''7''' [[Identification friend or foe|IFF transponders]]: the five Marines, [[Avery Johnson]], and Miranda Keyes.
* John-117 faces '''7''' pairs of [[Mgalekgolo]] in the campaign level ''Gravemind''.
* In the level ''[[H2:The Great Journey|The Great Journey]]'' there are '''7''' [[Eeo'Pimu-pattern Shade|Shade turrets]].
* At the end of the credits the "t" is replaced with a '''7''' in the sentence "And a whole load of people we didn't get time to 7hank".
* The phone booths on [[Terminal (map)|Terminal]] are all numbered '''7'''.
* The multiplayer map ''Terminal'' has a large '''7''' on the station building. 
* The Broadcasting station for the multiplayer map ''Terminal'' is [[Channel 7]].
* On ''[[Headlong]]'', near the bridge which connects to the Needler Building, there is a piece of paper with the number '''7''' pinned on the wall.
* In ''Headlong'' the number '''7''' is nailed by the side of the door on the building that contains the [[Type-1 Energy Weapon/Sword|Energy Sword]].
* On the level ''Zanzibar'', the Xbox's clock must be on '''7''':0'''7''' for the player to see the [[Zanzibar Easter eggs|Easter egg of Ling-Ling's head]].
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== ''Halo 3'' ==
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* In the background of the [[Halo 3 Collector's Edition|Collector's Edition]] of Halo 3, the door behind the Chief has a '''7''' written on it.
* In an ad for the ''Halo 3'' guide that occasionally shows up on Bungie.net, "0'''7'''" is stenciled in white on the [[Pelican]] behind the Master Chief. The art is also used as the cover art of Collector Edition's game manual.
* '''7''' covenant species are in the game manual.
* In the level [[H3:Arrival|Arrival]] John-117's arm is seen after '''77''' seconds.
* There are two '''sevens''' on the side of an [[Unggoy Minor]]'s [[Unggoy combat harness|armor]].
* There are '''7''' scoped weapons: [[BR55HB battle rifle|Battle Rifle]], [[Sniper Rifle System 99D-S2 Anti-Matériel|Sniper Rifle]], [[Sulok-pattern beam rifle|Beam Rifle]], [[Vostu-pattern carbine|Covenant Carbine]], [[Rocket Launcher|M41 Surface-to-Surface Rocket Medium Anti-Vehicle/Assault Weapon]], [[Pez'tk-pattern fuel rod gun|Fuel Rod Gun]], and [[M6 Grindell/Galilean Nonlinear Rifle|Spartan Laser]].
* The [[M6G2 magnum|M6G Magnum]] has a [[Korea]]n Hangul symbols on the barrel, and the very bottom of the mag. When reflected, it translates to the number '''7'''.
* The [[M7/Caseless Submachine Gun|SMG]] has a scratch in the shape of a '''7''' (easier to see if weapon is aimed at sky or near a light source).
* A UNSC Marine remarked, “The casing is constructed of an unusual porous metallic compound. Shrapnel from the [[Type-2 Antipersonnel Fragmentation grenade|Spike Grenade]] reaches a temperature of approximately 270 to 315°C and retains that heat for upwards of '''seven''' seconds. By design.” <ref>[http://halo.bungie.net/News/content.aspx?type=topnews&link=BAGBruteGrenade '''Bungie.net''': ''Type-2 Antipersonnel Fragmentation Grenade'']</ref>
* There are '''seven''' symbols on each end of the handle on the Energy Sword.
* On the side of the Warthog, below where the driver and passenger get in, just above the side skirts, there are '''7''' dashes.
* The [[M831 Troop Transport|Troop Transport Warthog]] is shown to have a total of '''7''' seats, whereas in-game there are only 5 available slots.
* It takes '''7''' seconds of the [[AV-14 Hornet]]'s twin-linked rotary cannons to destroy a Warthog.
* The {{UNSCShip|Forward Unto Dawn}} has the number '''7''' on the front of it.
* It takes '''7''' seconds from being infected by a [[Pod infector]] to turn into a [[Flood combat form]].
* There are '''7''' levels that the [[Character interludes|Cortana and Gravemind Moments]] occur. 
* There are '''7''' [[Forerunner]] [[H3:Terminals|terminals]] in total within the campaign. Finding all '''7''' terminals unlocks the [[Marathon Man]] achievement.
* The [[Anodyne Spirit|Forerunner Dreadnought]] has 14 x 14 x 14 dimensions. 14 = '''7'''+'''7'''.{{citation needed}}
* In the level ''[[H3:Crow's Nest|Crow's Nest]]'', in the ops center, the emergency power generators on the far side of the room, where one needs to go to get the Black Eye Skull, have the writing "EPG 2401": 2401 is '''7'''<sup>4</sup>.
* At the beginning of the level ''Crow's Nest'', some of the monitors have "Sector 331" written in a corner. 3+3+1='''7'''.
* In the level ''Crow's Nest'', on the walkway above the barracks there is a box with a large red '''7''' written on it.
* In the level ''Crow's Nest'', a rocket has the number '''7''' on each side.
* In the level ''[[H3:Tsavo Highway|Tsavo Highway]]'', John-117 exits the base through door number '''7'''.
* In the level ''[[H3:The Storm|The Storm]]'', there are '''seven''' plates of metal grinding on the cranes used to board the first Scarab, including the elevators.
* There are '''seven''' pallets on the pathway with the [[LAU-65D/SGM-151|missile pods]] on the level ''The Storm''.
* The are '''seven''' pipes the player can walk into on the lake bed where the Scarab was fought.
* There are '''7''' pairs of monoliths around [[Excession]].
* There are '''7''' usable vehicles on the level ''[[H3:The Ark|The Ark]]'', the seventh level of the game, including Arrival.
* In the room with [[Installation 00]]'s Cartographer, there are '''7''' trapezoids above the doors.
* In the opening sequence of the level ''[[H3:The Covenant|The Covenant]]'', there are '''7''' drop ships: 5 [[Pelicans]] and 2 [[Phantoms]].
* There are '''7''' [[Jiralhanae Chieftain]]s and [[Jiralhanae War Chieftain]]s combined in the level ''The Covenant''.
* In the level ''The Covenant'', there are '''7''' [[Sangheili]] assisting the UNSC forces (excluding the [[Thel 'Vadam]], [[N’tho ‘Sraom]], and [[Usze ‘Taham]]).
* There are '''7''' [[Gravemind]] moments on the level ''[[H3:Cortana|Cortana]]''.
* In the level ''Cortana'', in the beginning of the cut scene in which Cortana is rescued, there are '''7''' seconds of silence before she says "You found me".
* It takes '''7''' seconds for 343 Guilty Spark to explode after being dealt the fatal shot in the level ''[[H3:Halo|Halo]]''.
* During the [[Warthog Run]] in the level ''Halo'' there are '''7''' vehicles other than the Warthog: 4 [[Karo'etba-pattern Ghost|Ghosts]], 1 [[M274 Mongoose|Mongoose]], and 2 [[Barukaza Workshop Chopper|Choppers]].
*The [[Voi Memorial]] at the end of the level ''Halo'' takes place on 3/3/2553 which when adding all of the numbers up and dividing it in 3 results in a '''7'''  (3+3+2+5+5+3= 21, 21/3='''7''').
* In the credits, Bungie frequently replaces the letter 't' with the number '''7'''.
* If one turns on the coordinates display during game play, the second coordinate during the credits is -'''7'''.'''777'''
* On the multiplayer map ''[[Sandbox]]'', the Golf Club is called a [[7 wood|'''7'''-wood]].
* Deaths that do not require two people have a '''seven''' second respawn when no other penalties are active.
* All of the computers placed in [[Forge]] display a very hard to read paragraph. However, it is easy to make out several 0''''7'''s in the writin