List of "Seven" References in Halo

• 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^[3]
• At the end of the book, when the Pillar of Autumn reaches the halo, Cortana states the halo is 22.3km thick. 2+2+3=7
• A UNSC Destroyer was only 7 meters longer than a Frigate.^[4]
• Lieutenant Hall has written 7 physics papers on Slipspace communications.^[5]
• Four Covenant frigate ships are an even match with 7 UNSC destroyers.^[6]
• Hall reports a collision in 7 seconds.^[7]
• Jacob Keyes could only count 7 UNSC vessels still intact after the battle of Sigma Octanus.^[8]
• Jericho VII. VII = 7 in Roman Numerals.
• Eric Nylund was given 7 weeks to write the book.
• Master Chief is surrounded by 7 soldiers.^[9]
• The Pillar of Autumn carried 7 C709 Longsword-class Starfighters.
• 7 Covenant frigates were pursuing the Pillar of Autumn^[10].
• When the SPARTANs test the MJOLNIR suit with shields, when John gets ready to go outside there are 7 ODSTs standing outside around the tent.
• At the date of September 12, 2525,there were only 34 spartans left.3+4=7 and the year 2525 is 2+5=7.

七, the Chinese character for 7, is visible on the M6D Pistol's ejection port.

• There are 7 handheld Human weapons including the Frag Grenade.
• In the level The Silent Cartographer (Level), there are seven overshields.
• On the level "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.
• 343 Guilty Spark: derived from the value 343 is 7³.
• In Halo: The Flood, Silva wishes he had 7 Lt. Mckay's.
• The Hanzi character for seven (七) is on the M6D Pistol, it also appears to be 7 upside down.^[11]
• You need at least seven needles from the Needler to make an explosion.
• In The Maw, when 343 Guilty Spark halts the countdown to the engine cores' detonation, the timer reads 12:31. 1+2+3+1=7.
• After destroying the fusion core on the Pillar of Autumn, Master Chief drives a Warthog through a class 7 service corridor.
• The last Longsword on the Pillar of Autumn was in launch bay 7.
• In the last cut scene of Assault on the Control Room there are 7 pillars of light in the background.
• On the third page of the manual explaining the HUD (pg. 15), a screenshot with an explanation of the scope shows 7 extra bullets in the sniper rifle.
• On pages 16-19 in the manual, there are 7 UNSC weapons in all.
• Also on page 24 of the manual, in the Power-Ups box, there are 7 power-ups.
• The prologue ends on page 7.
• The Proto Gravemind has 7 tentacles.
• The multiplayer map Chiron TL-34 (3+4=7).
• In Halo: The Flood, Echo 419- 4+1+9=14 14/2=7
• There are 7 pine trees in the area surrounding the Control Room.
• There are 7 blast doors leading to the Index in the Library.
• It takes 7 pistol shots to take down an Elite on normal in Halo: CE.
• The Chapter "I Would Have Been Your Daddy" has 7 syllables.
• The Halo you play on is "Installation 04." Installation 04 has seven syllables.

• There are 7 Covenant ships in the system after Halo's destruction.
• There were only seven Human survivors from the destruction of Halo.
• The Covenant flagship Ascendant Justice has seven plasma turrets.^[12]
• There are seven surgical bays in the infirmary of CASTLE Base.
• As she is deleting Araquiel, Dr. Halsey taps the level seven security barriers.^[13]
• There were seven service drones aboard the Gettysburg.^[14]
• The dead crew of the Gettysburg is placed in cargo bay seven.^[15]
• The Master Chief sets his Lotus Anti Tank Mine detonator for seven seconds.
• After Fred and Kelly steal two Wraiths, they destroy seven others.

• The Spartan IIIs of Beta Company had been launched from Slipspace seven hours previous.^[16]
• Seven Covenant cruisers appear.^[17]
• "Only the seven Spartans here."^[18]
• "What Sangheili Major would dare disobey a Ship Master who had led seven glorious campaigns against their enemies?"^[19]
• "The seven Sentinels adjusted their aim and their spheres glowed red, amber, and then glistening gold."^[20]
• The ceiling above where the Spartans landed in the construct was 7 sided.
• The Semi Powered Infiltration Armor has 7 minutes of breathable air.
• Before casualties, there were 7 active Spartan-III's on Onyx (Tom, Lucy, and Team Saber).
• Kurt trained the Spartan III's for seven years.
• Seven other men stood shaking off the flashbang effects.
• When the core of the planet's door was going to close forever Dr. Catherine Halsey,was asked how much time they had left, it was

exactly 1:17 minutes. This can also be a reference to John 117's serial number.

• July 28, 2537, the Spartan-III's manage to disable 7 of the reactors on the surface.

^[21]

• In the ending cutscene, before Master Chief says over his radio 'Finishing this fight', Miranda Keyes, Sgt. Johnson and the Arbiter are with 343 Guilty Spark while he explains that the other Halo's have been contacted. During this, you can clearly see 7 Halo's in the holographic display.
• There are 16 syllables in "I Would Have Been Your Daddy, But the Dog Beat Me Over The Fence", 1+6=7. There are also 14 words in the phrase, 14/2=7. At the same time "I Would Have Been Your Daddy" contains 7 syllables
• The symbol on the Banshees' wings is made up of 7 red blocks.
• In Halo 2 there are 7 Covenant races seen: Grunts, Jackals, Drones, Hunters, Brutes, Elites, and Prophets.
• The phone booths on Terminal are all numbered 7.
• If you look closely at the Master Chief's helmet, you can see a faint 7 (This is best viewed in the 1st cut scene on Metropolis).
• 2401 Penitent Tangent: 2401 is 7⁴. Also, 2+4+0+1=7.
• One of the special Zanzibar Signs occurs on 07/07 (Also Bungie Day).
• The Gravemind speaks mostly in heptameter, a poetic style with seven meters per line.
• On Outskirts, in the small dark room where the IWHBYD skull is located, there is a number 7 on the wall.
• 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"
• To obtain the IWHBYD skull, one must face 7 waves of Ultra Elites, with 7 Elites in the 7th wave.
• On the level Cairo Station where the Arbiter gets branded with the Mark of Shame, there are 7 tiers of bleachers for the audience.
• In Outskirts on your way to the Blind Skull there is a sign bearing the number 7 nailed into the wall.
• There are currently 7 Covenant vehicles. Wraith, Ghost, Spectre, Scarab, Banshee, Phantom and the Shadow.
• There are also only 7 drivable vehicles in the game: the Scorpion, Wraith, Spectre, Warthog, Gauss Hog, Ghost, and Banshee.
• In a deleted scene, a longer version of the cut scene at the start of "Sacred Icon", Truth and the Arbiter were viewing 7 murals that showed how the Covenant had grown.
• There is a clearly visible 7 scratched into the cheek of Miranda Keyes.
• The ODSTs seen in-game belong to the 7th Orbital Drop Shock Trooper Division.
• The player fights in 7 levels as the Master Chief: Cairo Station, Outskirts, Metropolis, Delta Halo, Regret, Gravemind and High Charity .
• When you zoom in either the Covenant Carbine or the Fuel Rod Cannon, there are 7 hexagons making up the center.
• In Metropolis, near the end of the level where you have to destroy the Scarab, Sergeant Banks carries a communicator. On the back of this communicator is the Hindi word for seven, written in the Hindi script.
• Firing the Plasma Rifle until it overheats will drain 7 power units, assuming it is not burst fire.
• 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.
• The multi-player map Terminal has a large 7 on the station building.
• There is a 7 on the lower part of a Pelican's ramp.
• There are 7 ranks of Elites.
• On the single-player level Regret (Level), there is a ring of seven Plasma Grenades.
• You face seven pairs of Hunters in the level Gravemind.
• In Headlong the number 7 is nailed by the side of the door on the building that has the Energy Sword
• In Zanzibar there is a square in a wall on one of the entrances to the main building which has two squares showing a 2 and one square showing a 3 and the last one showing a W crossed with a line, you see 2+2+3=7.
• When the UNSC ship In Amber Clad was in the First Battle of Earth numerous units from the 17th and 77th Marine Regiments are on board.
• There are 7 levels of caskets in the Mausoleum of the Arbiter.
• In the level The Great Journey there are 7 large plasma cannons.
• In Headlong there is a number 7 nailed to a wall connected by the ramp by the shotgun, it is found in the building that houses mostly Human weapons.
• If you count the total of Phantoms in all of the Human levels such as Metropolis and Outskirts you will get a total of 7 Phantoms.
• The Broadcasting station for Terminal is Channel 7.
• When you are in the cairo station and Sgt. Johnson gets his medal,there are 7 people wearing white around you.

• On Crow's Nest on the walkway above the barracks there is a box with a large red 7 written on it.
• There are 7 structures coming out of the bottom of Epitaph.
• Cold Storage is the seventh downloadable Halo 3 map, and was released on Bungie Day (7/7).
• There are currently 7 ranked and 7 social playlists in Halo 3 matchmaking (not including Double EXP weekends).
• On matchmaking there's a playlist called "7 on the 7th" which is featured on the 7th of every month.
• There's a Vidmaster achievement that's achieved by entering any playlist with 7 EXP on the seventh of any month.
• To obtain the IWHBYD skull, you must jump through 7 rings.
• Miranda Keyes has a seven engraved in her cheek (you can see it clearly on Crow's Nest).
• In one of the Terminals, it is revealed that Mendicant Bias made contact and studied the Gravemind for 379,807 hours (3+7+9+8+7=34, 3+4=7). 379,807 divided by 24 (hours in a day) equals 15,825 days (1+5+8+2+5=21, 21/3=7). 15,825 / 365 (days in a year) equals 43 years. 4 + 3 = 7.
• The UNSC Forward Unto Dawn has the number 7 on the front of it.
• There are 7 pairs of monoliths around the Portal.
• “The casing is constructed of an unusual porous metallic compound. Shrapnel from the Spike Grenade reaches a temperature of approximately 270 to 315ºC and retains that heat for upwards of seven seconds. By design.” Taken from Bungie.net on Spike Grenades.
• There are 7 large objects in the background of Sandtrap, the six pillars and the Aegis Fate" Frigate.
• There are 7 columns of light inside the control room on Halo.
• In the mission Crow's Nest, a rocket has the number 7 on each side.
• At the beginning of Crow's Nest, some of the monitors have "Sector 331" written in a corner. 3+3+1=7.
• Last Resort is Zanzibar Municipal Turbine 7.
• The SMG has a scratch in the shape of a 7 (easier to see if weapon is aimed at sky or near a light source).
• It takes 7 seconds of Hornet ChainGuns to destroy a Warthog.
• It takes 7 seconds for 343 Guilty Spark to explode after being dealt the fatal shot in the level Halo.
• It takes 7 seconds from being infected by an Infection Form to turn into a Combat Form.
• In the level Cortana, in the beginning of the cut scene where you rescue Cortana, there is 7 seconds of silence before she says "You found me".
• High Ground has a vague "7" shape in the middle of it.
• The seventh level of the game (The Ark) is the first level of the series (chronologically) where you first see the Installation that developes the Halo Rings.
• On the side of the Warthog, below where the driver and passenger get in, just above the side skirts, there are 7 dashes.
• There are 7 rivets holding the panel on each side of the Warthog right below the driver or passenger entry opening.
• Only seven Sangheili ranks are seen in Halo 3.
• In the level Crow's Nest, when you first take control of the Master Chief, the emergency power generators on the far side of the room, where you need to go to get the Black Eye Skull, have the writing "EPG 2401". 7⁴ = 2401.
• The Magnum has Korean Hangul symbols on the barrel, and the very bottom of the mag. When reflected, it translates to the number 7.
• If you exit Epitaph in pan-cam mode, there are 7 lines in the dirt surrounding the tower that houses the map.
• In Tsavo Highway the doors at the start of the level all have the number 7 on them.
• In the multi-player level Sandtrap, the UNSC frigate, Aegis Fate, has a number 7 surrounded in a star on the side.
• When Miranda Keyes dies, there are 7 spikes from the Brute Spiker lodged in her back.
• In the Level The Covenant, there are 7 Elites that help you (not including the Arbiter or the other Elites in Co-op).
• There are 7 levels that the Cortana and Gravemind Moments occur.
• 7 Brute ships fled to the Ark.
• There are 7 lists of objects to put on a map in Forge. Weapons, Vehicles, Equipment, Scenery, Teleporters, Respawn Points, and Goals.
• The multi-player medal "Killionaire" has the pattern 343. 343=7x7x7.
• There are 7 usable vehicles on the level the Ark, the seventh level of the game, including Arrival.
• There are 7 Chieftains in the level 'The Covenant'.
• In the multi-player map "Foundry", at the wide end of the map there are 14 full squares in between the walls, 7 on each side.
• In the level Crow's Nest, in the barracks, there are 7 Marines you can save.
• There are seven Battle Rifles placed on the default Construct multi-player map.
• In the level Floodgate, there are seven marines capable of being saved. Two behind the sandbags, and five in the warehouse, one of these being the one overwhelmed by Infection Forms (though he'll be infected anyway).
• It takes 7 shots from the Magnum to destroy the Gravity Lift object.
• A Power Drain lasts for 7 seconds.
• Like the M6D, the M6G has Asian calligraphy stamped on the barrel, but in this case, they are Korean Hangul, not Japanese Kanji. The symbol, when reflected, translates to 7.
• The center screen in the sword room on The Pit features the name sector 331. 3+3+1=7.
• It takes 7 seconds for the screens in The Pit Ops Center to scroll through all of the visuals.
• Shooting the front of a Mongoose with a Sniper Rifle 7 times would destroy it.
• There are seven spikes on the combat helmets of Elites.
• In the room with the Silent Cartographer, there are 7 trapezoids above the doors.
• In the campaign lobby while selecting the level, there are seven two-sentence levels.
• The Type-52 Pistol, a.k.a, the Mauler, is a reference to 7. 5+2=7.
• There are 7 individual lights throughout the cave of Valhalla.
• There are seven pieces of grating involved with the missile launcher scenery on High Ground (including the one placed under the aiming machine).
• Outside the computer room on High Ground, above the yellow stripe is the white text 443-9A. A=1. 4+4+3+9+1=21 21/3=7
• On the 'fire point' sign on High Ground there are 7 licks of flame coming from the white triangle.
• There are 14 steel doors on High Ground. 14/2=7 (this counts the gate as two individual moving doors).
• There are 7 lines of text on the screen of the gate switch on High Ground.
• The two small generators in the foundry rec. room are labeled with the number 25. 2+5=7.
• Slayer matches last 12:07 in matchmaking if fully played out.
• Deaths that do not require two people have a seven second respawn when no other penalties are active.
• There are two sevens on the side of Grunt Minor armor.
• There are seven areas surrounding the portal, (from closest to farthest) the landing pad, the downward slope going into the landing pad, the first ring of metallic symbols, the second ring of metallic symbols, the third ring of darker, metallic symbols, the slope of fiery and burned land, and the city/mountain.
• There are seven plates of metal grinding on the cranes used to board your first scarab, including the elevators.
• There are seven pallets on the pathway with the missile pods on the storm.
• The are seven pipes you can walk into on the lake bed where you fight your first scarab.
• The center structure of the scarab lake-bed has a cylinder on top with 7 pipes going out of it.
• There are 14 needles poking up out of the Needler. 14/2=7.
• There are 160 weapons you can forge on High Ground not counting the ones already placed on the map. 1+6+0=7.
• It takes 7 seconds to rotate the player's model when viewing his/her service record in game or when changing appearance settings.
• There are seven symbols on each end of the handle on the Energy Sword.
• On Sandtrap there are 7 standing angled pillars on the long indoor walkway.
• The red block on the Banshee resembles a backwards 7.
• The Multiplayer map Epitaph has 7 hologram projectors, 6 minor ones and the Mendicant Bias projector.
• There are 7 syllables in the IWHBYD skulls name. I-would-have-been-your-dad-dy.
• There are now 14 Covenant Weapons, excluding the Forerunner Sentinel Beam in total. 14/2=7.
• There are 14 pieces of Equipment in total. 14/2=7.
• You can get 7 Objective Sprees in Halo 3.
• Covenant vehicles introduced in Halo 3 carry 7 references. The Brute Chopper, also known as the Type-25 Rapid Assault Vehicle is one of them. Meanwhile, both the Anti-Air Wraith and Prowler are Type-52 vehicles. 5+2=7.
• The Anti-Vehicle Model 6 Grindell/Galilean Nonlinear Rifle, the full name for the Spartan Laser, has 7 words in its name.
• A tree in Sierra 117 denotes three numbers, 7-16-95. The digits in 16 total 7, while the digits in 95 total 14. The first number is needless to say, a 7 reference.
• In Crow's Nest, red boxes display the number 2401 (7⁴) 2+4+0+1=7 .
• There are 7 scoped weapons: Battle Rifle, Sniper Rifle, Beam Rifle, Carbine, Rocket Launcher, Fuel Rod Gun, and Spartan Laser.
• In the credits, Bungie frequently replaces the letter 't' with the number '7'.
• There are 7 Vidmaster achievements; 4 achievements can be found in Halo 3 while the other 3 are to be released with Halo 3: ODST (3+4=7).
• One of the Halo slogans is "Finish the fight." There are 3 words with 4 syllables total. 3+4=7.
• The plasma cannon's full name is the "Type 52 Automatic Plasma Cannon. 5+2=7.
• According to the Halo 3 instruction manual, the kill radius of the plasma grenade is 4m and the kill radius of a spike grenade is 3m. 4+3=7.
• Seven Marines fire their Battle Rifles in the air in the ceremony at the end of Halo 3.
• Now with the 79 achievements there is another Seven reference. 7+9=16. 1+6=7.
• Halo 3's total attainable gamerscore after the update is 1,750. 1,750/250=7.
• On the level Cortana you can encounter 7 flood portas if you include the 5 if takes to get to the room with Cortana and 2 when you escape High Charity.
• There are 7 Gravemind moments on Cortana.
• There are seven original UNSC vehicles other than a warthog and others.
• There are 4 levels in Halo CE and Halo 2 with Sentinels, while in Halo 3 there are only 3. 4+3=7
• There are a total of 7 Auto Turrets you can get in Halo 3.
• On the mission Halo there are 7 vehicles other than the Warthog: 4 ghosts, 1 mongoose and 2 choppers.
• On the multiplayer map standoff,each missile silo has a number in the center and 7 segments around that in a circle
• There is 7 bellows of smoke on the horizon in Rat's Nest.
• One of the tunnels on Rat's Nest has a large "92" printed above it. 9-2=7, this is a possible 7 reference.
• It takes 7 shots from the needler for the needles to explode
• It was 7 seconds before Miranda Keyes died after spikes were impaled into her back by the Prophet of Truth.
• On the level Tsavo Highway you exit the base through door number 7.
• The achievement Two for One can be read as 2 4 1, 2+4+1=7
• There are seven different types of enemies on Halo 3.
• On sandbox the reskinned gravity hammer is called a 7-wood.
• The orange energy shield on assembly will emit 14 sets of small plumes of smoke before another scarab fully emerges from it.
• If all golf items are spawned on sandbox, the PGGA grunt face will appear 34 times, 3+4=7
• The blue lights that shoot out of the towers on Valhalla appear every 49 seconds. 7*7=49
• The Human-Covenant war had begun 2525 and ended 2553, approximately 28 years. A possible seven reference.
• There is a 7 like object painted onto the beginning of the banshee's wings.
• There are 49 original achievements. 49=7x7.
• In matchmaking, there are 7 pieces of equipment that can be used.
• on the map sandtrap the hiroglyphson the tablits some parts say great journey a dreadful enemy and 3 and 4 3+4=7
• The word 'Halo' has 4 letters when added with the 3 the sum equals 7 (4+3=7).
• In the levels Storm & Floodgate part of the warehouse is called Section K434, the word 'Section' has 7 letters in it. K434: 4 + 3 - 4 = 3, K is the 11 letter in the alphabet. 3 + 11 = 14. 14 divided by 2 = 7.

• There are 14 transmissions. 14/2 = 7
• Cortana signs one letter with seven 'X's and 'O's.
• Cortana sends seven emails. Alternatively, Letter Three was likely never intended, so seven messages were planned.

While Ilovebees was technically created by 4orty2wo Entertainment rather than Bungie, it is highly probable they were aware of and continued the tradition.

• When the Apocalypso crashes, all communications in the solar system are disabled for about seven seconds.
• When players unlocked 777 axons, a voice-actor playing Melissa joined the game.
• When Kamal Zaman accesses his voice mail, he has seven old messages.
• Hiro, reading a how-to book on dating, tells Kamal to skip to chapter seven.
• A part of the game had players guiding the Sleeping Princess out of her "glass coffin", a prison in her mind appearing as a story-tale world. Players would have to guide her down various paths marked by signs with unusual markings. The correct paths are Deadly Sins (there are seven), Waves (seven seas), and Skinny Cow and Fat Cow (in the Bible, the Pharaoh had a dream about seven skinny cows that ate seven fat cows).^[22]
• When Rani tries to start a chatter business with a friend, their equipment only manages to produce 49. 49 = 7 x 7
  • Rani leaves with 14. 14 = 7 + 7
• As of 2004, Aunt Margaret has been beekeeping for seven years.
• Yasmine Zaman's augmentations are preformed in Lab 7.
• Yasmine Zaman washed out of the Spartan II program at age 14. 14/2=7
• Margaret Efendi's email address, later hijacked by the AIs, is ladybee777@hotmail.com

• There were seven space elevators.
• The first space elevator of the Tiara to collapse was the seventh elevator.
• There were seven small boxes streaking up the Tiara's elevators.
• Twenty-eight containers were already on the strands in coupled pairs of fourteen. Both 28 and 14 are divisible by 7
• Every five minutes there were seven pairs of containers that would rise.
• Later Loki changed the five minute interval for the containers to seven minutes.
• An ONI report after the Epilogue under <\ CIVILIAN CONTRACTOR "Charlie Hotel" was in brackets [ONI.REF #409871]... 409,871 divided by 58,553 is equal to 7.
• In that same report can be found 2 other references. The first found in the line SOURCE.REF#JOTUN-s2-05866. 5,866 divided by 838 is 7. And the second is found in the line SOURCE.REF#JOTUN-S4-021147. 21,147 divided by 3,021 is 7. Also, 21 divided by 3 is 7.
• When Staff Sergeant A.J. Johnson offers his hand to Byrne, he hesitated, enough for Jenkins to count from push-ups 38-45. (45 - 38 = 7)

• Commander Dmitri Zheng's homeworld was glassed 7 years before the book events, while he was out on patrol.
• As the A.I. aboard the Petya talked to the Spartans, Mike held 7 fingers to his thigh as a sign for Jai, indicating the standard AI 7 year lifespan.
• Seven ODST's were killed during the attack on the Redoubt.
• Ignatio Delgado's name has 14 letters in it.14/2=7
• The title of the book has 7 syllables.

• In Halo Wars, both the UNSC Firebase and Covenant Citadel possess 7 expansion sockets.
• If you take the year that the Halo trilogy (2552) took place and the year of the first battle of the Covenant (2531) and subtract those two and you'll get the result 21 and divide it by 3 = 7 (2552-2531=21 divided by 3=7).
• There are 7 Elites deactivating camouflage in the first Halo Wars Trailer
• There are 7 types of buildings for each UNSC and Covenant.
• 7 members of Omega squad come to your aid during Arcadia Outskirts.
• There are 7 power nodes that you can destroy to make the super scarab's searchlight move slower.
• In the final cutscene "The End", after Anders is put into cryo-sleep, you can see the the numbers, 3 and 4 behind Cutter. This is possibly another 7 reference (3+4=7).
• There are 14 default Skirmish/Multiplayer maps. 14 is a multiple of 7.
• There are 7 barrels on the front left part of a firebase.
• On the anti air upgrade for the turret, there are 14 missile pods. 14/2=7
• In the new DLC, there will now be 17 maps. 1x7=7

• In the trailer, there are seven Brutes in the Covenant patrol.
• In the trailer, the ODST's last fatality estimate displayed was 0.52%. 5+2=7
• In the trailer, the song that plays is 77 seconds long or 1:17 minutes long, a seven/SPARTAN-117 reference.
• At approximately 10 seconds into the ODST trailer there are 7 HEVs burning in the atmosphere.
• At approximately 15 seconds into the ODST trailer there are 28 levels of blue glass on the left tower. 28/4=7
• The Superintendant will change his face 7 times during the trailer (including its beginning emotion).
• The day the game was renamed Halo 3: ODST was 25th November 2008. 2+5=7
• In the Halo 3: ODST "Please Remain Calm" background the number seven is rather abundant. 17 counted.
• The Rookie's enlistment date is 07/07/2547. (07/07)
• On Buck's ODST armor it can be see MK 17
• In Firefight, you have 7 lives.
• Orbital Drop Shock Trooper has 7 syllables
• There are 47 Achievements.
• 7 Playable characters in Firefight (If you include Sgt. Johnson)
• 7 Protagonists in ODST (counting the Superintendent)
• In the E3 demo it took about 7 Seconds for the Rookie to recover from his fall.

• The trailer is exact 1:17 minutes long.
• There were seven explosions on the planet before Epsilon Erandi comes into view.

• The Prophets left their homeworld in the 7th Century BC (648 BC).
• Most of The Halo Series is set in years beginning with the number 25. 2+5=7 The vast majority of the game trilogy is set in 2552. 5 and 2 is the exact same equation, per order of operations.

• Most family names of Sangheili have 7 letters, including the 'ee' suffix for military service (e.g., Vadumee, Zamamee, Vadamee).
• It takes 7 needles to generate a explosion.
• Coincidentally, the Halo Mountain Dew Game Fuel had 77 grams of sugar in the bottle.
• There are a total of seven variants of the Warthog: The Rocket Hog in Halo: CE, the normal variant, the Gauss Hog, the Troop transport hog, the Flatbed Warthog, the Warthog APC, and the Civilian Hog, as seen on Headlong.
• Seventh Column is the name given to Bungie's official fan club.
• The Master Chief stands 7' tall.
• There are seven remaining Spartan-IIs still able to fight: John, Fred, Kelly, Linda, and Gray Team, the three missing at the start of the mission to capture a Prophet.
• The Ascii Master Chief in a Bungie Weekly Update was made with 7s.
• There are 7 different Covenant races seen in game.
• In the Halo 2: Original Soundtrack Vol. 1, there are 21 songs. 21=7 × 3.
• There are 14 UNSC weapons in the Halo games and Books. 7 × 2 = 14.
• The Master Chief's number is 117. 1 x 1 x 7 = 7.
• Smart AIs (such as Cortana) go rampant after seven years of activation.
• The Tiara has 7 orbital elevators.
• There are 7 Halo rings.
• In the credits for Halo 2 and Halo 3 instead of simply using the word "thank" they replace the first letter with a 7, making it "7hank".
• In all 3 Halo games, their are a total of 35 levels. 7 times 5= 35
• In the Halo: Combat Evolved Soundtrack, the total running time is 1:05:08. 1+5+8=14, 14/2=7.
• Considering its 10,000 km diameter, Halo would need to rotate at 7 km/s in order to produce artificial Earth-like "gravity" (from centripetal force).
• In the Cortana Letters "... In my palace deep, Lyca lies asleep ..." is mentioned on the 7th letter and is believed to be from the poem "The Little Girl Found-By William Blake". One section says:
• There are Seven Letters in the Word Spartan.

"Arm in arm, SEVEN days
They traced the desert ways.

SEVEN nights they sleep
Among shadows deep,
And dream they see their child
Starved in desert wild."

• In the preview of Halo 3 featured at the Seattle IMAX theatre, Bungie gave away a prize to the person sitting in seat G7. (Note that G is the seventh letter of the alphabet, so it is essentially 77.)
• The legendary map pack banner on the official bungie.net. There is a sentence saying: Tru7h. Carnage. Bungie. (Note that the T in truth is represented by a 7).
• The Bungie Creed (which you see on their site when looking at job options) include seven things 'to do,' including one to make a giant slingshot and shoot enemies into the sun (this one is the seventh).
• Technically, all of the "Monitor" Forerunner A.I.'s have I.d. numbers that are powers of seven.
• The Forerunner Dreadnought has 14 x 14 x 14 dimensions. 14 = 7+7.
• Coincidentally, Halo 3 was nominated for 7 awards on the Spike TV awards.
• In the background of the Limited 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, "07" is stenciled in white on the Pelican behind the Master Chief.
• Bungie has Seven Steps to World Domination.
• In the Bungie weekly update, 6/27/08, this message is posted:

/PACKET INTERRUPTION – ERROR CODE 5929 */ …Attempting Recovery… …Attempting Recovery… / 93% PACKET CORRUPTION – RECOVERY UNSUCCESSFUL - DISPLAYING

• /C!#4x---^&-$x%^^p3@

Head2@!#SWa#++-DL*SLAj3r
48hr0x0ABFFFFF [ERR 5929]

/ END DISPLAY */

Out of 5929, 5+9+2+9=25 2+5=7

Also, with "93% packet corruption", 7% was left uncorrupted.

(edited) If you use each symbol and letter with it's corresponding number(1! 2@ 1a 2b etc),little imagination, and math and you have 8+1+3+1+3+4+24-6+7-4+24+5+6+6+16+3+2= 103_______ the minuses are dashes in the code. 103/7 on a 12 digit calculator=14.7142857142 look closer (14).(7)(14)(28)5(7)(14)2 the only non multiples of 7 are 5 and 2, 5+2=7 that's 7 variations of 7 in that code.

• Also, in that same update, in the Double EXP playlist's list there's a line that reads "[SPURIOUS INTERRUPT: PACKET LOST - ERROR CODE 5929]" same, 5929 is 5+9+2+9=25 2+5= 7, maybe a special reference to a special playlist on July 7th.
• While looking at the placement of the shield bar from H1 to H3, a vague 7 appears.
• There is 7 levels in the Halo games that the Arbiter is featured in that you encounter Flood. Oracle, Sacred Icon, Quarantine Zone, Floodgate, The Covenant, Cortana, and Halo.
• In the web series Red vs. Blue, there are 7 total main characters (this includes only the Spartans, not other non-Human characters). These characters include: (Red Team) Sarge; Simmons; Donut; and Grif, and (Blue Team) Church, Caboose, and Tucker. Tex is excluded from this group because she is a Freelancer, this excludes Doc because he belongs to both teams, it excludes Sister because she isn't an enlisted soldier, and excludes Vic because he is a part of Command.
• In the Halo series there are 7 levels named after a Halo character: 343 Guilty Spark, Keyes, The Arbiter, Regret, Gravemind, Sierra 117 and Cortana.
• Bungie broke off from Microsoft July 7, 2007 7/7/07
• The M6B Handgun is a 21 reference. M=13, B=2 (13+6+2=21)
• There are a total of 7 Halo games exclusively for XBOX 360: Halo 2, Multiplayer Map Pack, Halo 3, Halo Wars, ODST, Halo: Reach and Halo Chronicles.
• There are seven syllables in Orbital Drop Shock Troopers.
• There are 14 total Covenant weapons. (only guns)
• Bungie's The Art of Halo 3 was released on November 25th, 2008 (2+5= 7).
• There are 7 vidmaster achievements.
• In Dead or Alive 4, Spartan-458 has 7 different costumes in total.
• UNSC can be translated to 22*14*19*3=18480 18480/2640=7
• There are seven Halo games so far: Halo: Combat Evolved, Halo 2, Halo 3, Halo Chronicles, Halo Wars, Halo 3: ODST, and Halo: Reach.