Bungie Studios has long enjoyed using the number Seven (7) in its games in many prominent ways.Ensemble Studios, 343 Industries, and authors also have certain obvious seven references in their works about Halo. 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 (or be a determining factor) why John-117 is considered lucky, as 7 is considered a lucky number. In spite of the fact that the number seven is featured extensively in Bungie's work, it has generated an aura of apophenia. This cultural nuance can be compared to the 23 enigma.
Carol Rawley (aka Foehammer) 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 lifepods.
When you get on the scene to defend the group of Marines at the rock slide on "Halo", there is a sniper rifle near the lifeboat with one round in its magazine. Once reloaded, you'll have 21 extra rounds. (7 times 3)
Foehammer is instructed to pick up John-117 at external junction 4C. Considering C is the 3rd letter of the alphabet, 4C would be 4 and 3; 4+3=7.
Page 68 of "The Flood" Novel by W.Dietz - He counted to three, then dashed from boulder to boulder. He leapfrogged uphill, still very much aware of the banshee at his back, but reasonably certain he'd given the aircraft the slip. There were no blips on his threat detector, until he topped the rise and paused to examine the terrain ahead. A telltale red dot popped onto his HUD. John-117 eased his way forward, waiting for the moment of contact. Then he saw movement as hunched bodies dashed from one scrap of cover to the next. There were four of them, including a blue-armored Elite. (3 seconds, 4 Contacts - 3+4=7)
Junction point 4-C, if converted to all numbers, makes 7. The C is the 3rd letter in the alphabet.
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 7, 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 multiplayer map Terminal has a large 7 on the station building.
There is a 7 on the lower part of a Pelican's ramp.
Firing the Sentinel Beam until it overheats will leave a remaining charge of 77.
The Broadcasting station for Terminal is Channel 7.
It took 7 seconds for the bomb to detonate in the last cutscene on Cairo station.
7 hexagons make up the zoomed targeting reticule of the Covenant Carbine.
In the E3 2002 trailerHalo 2, when John-117 walks into the hanger and launches himself into space (which his BR55 is replaced with the Covenant bomb in the game's cut scene), above the door to the hanger is "A-07".
In the Vista version of Halo 2, the Silent But Deadly Achievement requires the player to kill 7 enemies from behind without being spotted.
In the level Outskirts, there is a total of 7 Shadows.
On the level Zanzibar, to get the easter egg about finding Ling-Ling's head, you must put the Xbox clock on 7:07
On the mission The Arbiter, the hidden subtitle is seven words long: "Scrape them as
excrement from our boots!"
The player plays as Thel 'Vadamee for 7 levels in the campaign (counting The Heretic).
“The casing is constructed of an unusual porous metallic compound. Shrapnel from the Spike Grenade reaches a temperature of approximately 270 to 315°C and retains that heat for upwards of seven seconds. By design.” Taken from Bungie.net on Spike Grenades.
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.
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 Chain Guns 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.".
On the side of the Warthog, below where the driver and passenger get in, just above the side skirts, there are 7 dashes.
The Troop Transport Warthog is shown to have a total of 7 seats, whereas in game there are only 5 available slots.
In the level Crow's Nest, when you first take control of John-117, 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": 2401 is 74. .
The generator on Orbital has the number 2401 on it. 2+4+0+1=7, and 7 to the fourth power, 7*7*7*7=2401.
The Magnum has a Korean Hangul symbols on the barrel, and the very bottom of the mag. When reflected, it translates to the number 7.
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.
There are 7 bellows of smoke on the horizon in Rat's Nest.
On the level Tsavo Highway, you exit the base through door number 7.
On Sandbox the Golf Club is called a 7-wood.
The blue lights that shoot out of the towers on Valhalla appear every 49 seconds. 7*7=49
In matchmaking, there are 7 pieces of equipment that can be used.
At the bottom of the 'pit of death' on Orbital, there are 7 purple lights randomly scattered (not including the ring of 6 lights, which have a darker shade of purple).
There are 7 terminals in total within the game (unless if one counts the secret Cortana moment on the level Cortana).
All of the computers placed in Forge display a very hard to read paragraph. However, it is easy to make out several 07s in the writing.
If you turn on the coordinates display during game play, the second coordinate during the credits is -7.777
To receive the IWHBYD Skull you must jump through rings 4 6 5 4 5 3 4 of the 7 holographic rings [1 being at the entrance] at the end of the 7th mission "The Covenant" after killing the prophet and all enemies in the room
Miranda Keyes was killed by 7 Spiker rounds shot by The Prophet of Truth.
In Crow's Nest, after the Pelican takes the troops out of the base, several large storage crates have the writing: WT 700 LBS.
On Crow's Nest, before you enter the hangar where you fight two Phantoms, you pass through a large, circular room with a pillar in the middle with the number 7 on it.
While I lovebees 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).
When Rani tries to start a chatter business with a friend Trevor, their equipment only manages to produce 49. 49/7=7
Rani leaves with 14. 14/2=7
Trevor planned to make chatters for 7% of what they cost in convenience stores.
The assault rifle Carter kicks to Noble Six in the Winter Contingency cutscene has seven rounds in its magazine.
The achievement KEEP IT CLEAN requires the player to kill 7Moa on the second mission of the games campaign.
In the level Winter Contingency, there are seven possible BOB spawns, another possible reference to the number.
It is possible that the release date of Halo: Reach is also a reference to seven as the release date is September 14, 2010. (14/2=7; "Sept" is seven in French and Latin, and September was once the seventh month)
At the very end of the credits, in the small grid, the number 7 flashes briefly before fading to the "Lone Wolf" mission.
After the mission, "Lone Wolf", there is a cutscene with "New Reach" in the background and Noble Six's helmet on the ground. Notice the date is July 7th, 2589. July is the seventh month of the year. This is also a reference to Bungie Day.
At the main title screen, while various battle sounds are playing, occasionally a clear seven shot burst from an Assault Rifle can be heard.
On the 7th level, Exodus, the player can find an ad on the world cuisine stands for a Moa combo costing 7.77 cR.
It is a common occurrence to get 777 as well as 313 (3+1+3=7) on the post game slot machine online
Jun A-266's service number is also a reference to seven, 2+6+6=14, 14/2=7.
The player begins the 7th level, Exodus, with 25 extra Magnum rounds. (2+5=7) In addition, there are 7 rounds left in the starting magazine.
There are 14 jets on the back of the Pillar of Autumn. 14/2=7
At the beginning of the level The Package, the time is shown as 26:16. 26+16=42=6*7.
At the beginning of the mission "Nightfall" there is a poster in the first building with 35 black people and 1 red person on it. The red person is on the bottom row 7 places from the left. 35 (the # of black people) divided by 5 is 7.
In the seventh mission, Exodus, Civilian Transport 7 survives.
Pressing the hidden switch in the level "The Package" results in the Tribute Room door opening and 7 Elites emerging with swords.
The serial # of a Falcon is 1611513214. (1+6+1+1+5+1+3+2+1+4=25, 2+5=7)
The grenade launcher starts off with 7 grenades.
When falling without forward momentum, the fall distance for minimum damage is 7 units. Units are from the "Nudge" tool in forge.
In the Deliver Hope trailer, seven seconds pass between Kat being hit by the Banshee Bomb and the next time the MFDD is shown.
Carter A-259's service number is also reference to seven, 2+5+9=16, 1+6=7.
The cR you achieve for completing a match always can be divided by 7.
On the Collar/Breacher armor, there are 7 shotgun shells.
Frigate Grafton is spelled with 14 letters total. There are 2 words in "Frigate Grafton". 14/2 = 7
There are 7 Sangheili Zealots encountered within the campaign; a pair of Zealots assisting the Field Marshall in Winter Contingency, a third in Tip of the Spear, 3 more assisting the Field Marshall in the Pillar of Autumn, and the final one who kills Noble Six in Lone Wolf
There are 7 different pre-order bonuses: the Pulse armor skin for the GUNGNIR armor, the Artic skin for the Battle Rifle, the Circuit skin for the Oceanic armor, the Forest skin for the HAZOP armor, the Raptor skin for the Venator armor, the Web armor skin for the CIO armor, and the Deadeye helmet skin.