Armor customization (Halo 3)

Armor customization in Halo 3 allows players to customize their Spartan and Elite player model with a variety of armor pieces available to players. The feature is an improvement of Halo 2's player customization feature, and the first in the series to allow players to change the physical model of their character beyond species and colour selection.

Overview
Halo 3 features a number of armor selections for both Spartan and Elite player characters, unlocked primarily by accomplishing feats within the campaign, Matchmaking and earning achievements. The system was initially unveiled in the July 2007 issue of GamePro, featuring a handful of images of the EVA and CQB armor sets alongside the standard Mark VI, though was noted by Bungie to not be the full set of armor available in game. Bungie later officially announced the inclusion of Elite armor variants, and on Bungie Day 2007 officially unveiled the CQB and EVA permutations' visuals and lore. A piece of art illustrated by Isaac Hannaford released at the same time additionally revealed the existence of the Recon armor, though the armor was not specifically called out by Bungie or given any attention until later.

In total, there are 17 armor sets included in Halo 3, 12 of which for the SPARTAN-II character model and 5 for the Elite character model. These armor permutations are organized into three categories: Helmet, Chest and Shoulder. Certain armor permutations can only be unlocked by completing the game on certain difficulties, accumulating certain Gamerscore, or by obtaining certain multiplayer-specific achievements. Some, such as Recon or the exclusive Bungie Armor, have more esoteric unlock requirements, and can only be granted under certain conditions. Additionally, some Spartan armor sets only contain a helmet piece or chest piece, with no other associated armor selections.

Halo 3 unlock requirements
Note: The below unlock requirements only apply to the original Halo 3'' game on Xbox 360 or via Xbox One backward compatibility. In The Master Chief Collection, all armors from LegacyHalo 3 are unlocked by default for all players - including the Bungie armor.''

Halo: The Master Chief Collection
For the Halo 3 multiplayer component of Halo: The Master Chief Collection, all armor - including Recon and Bungie - was unlocked for all players for use by default. Between the game's launch in 2014 and the launch of Halo 3 on PC in 2020, armor customization was limited to full sets with no mix-and-match customization, due to the difficulties of running multiple engines in the menu component. In this launch rendition, the armor sets were displayed in the menu as static renders, with the armors using full armor sets or - in the case of armors with no associated armor for chest, helmet or shoulder elements - Mark VI to supplement missing elements. As such, using a helmet such as Mark V or ODST required the usage of all Mark VI for everything else. Using the Katana chest, however, would use Hayabusa for all other armor elements. Additionally and for the first time, The Master Chief Collection allowed players to use the Bungie Armor (now renamed "Flaming Head"), and would display the characteristic flames and EOD chest as it did in the original game, though with enforced Mark VI shoulders and helmet.

Following the launch of Halo 3 on PC and start of Season 2: Spark, this system was updated to display Halo 3 character models in Unreal Engine 4, with full customization in-game as it was at the launch of Halo 3. In this change, the Bungie Armor chest was renamed "Legacy", and the Security armour set was given a chest armour piece; in launch Halo 3, equipping the Security helmet additionally outfitted the chest with a small antenna. Following the Season 2 update, the antenna is now considered a separate chest, and can be used regardless of helmet.

With the launch of Season 3: Recon, Halo 3 customisation was updated with the inclusion of skins for application on a player's weapon and several new visor colour options for use with all helmets. The full list of Halo 3 skins can be viewed here.

In the Season 4 December update, Halo 3 was expanded to include new techsuit customization, with the players being able to change it between a new Halo 3 techsuit and Halo 4 techsuit (both colored and full black).

Season 5: Anvil included twelve new armor permutations for Halo 3, originally created for the cancelled Halo Online. Additionally, included new forearm and leg customisation, allowing players to choose between the new twelve armors or the default Mark VI. These armors can be toggled off for a more classic experience, with any players using Halo Online armor instead displaying as default Mark VI.

Season 6: Raven included several new armor permutations, including six Halo Online armor permutations and the four ODST armors used by Fireteam Raven in the namesake game. It also added a "Back Accessory" option, allowing players to choose between six new back packages (four being based on Halo: Fireteam Raven), three new techsuit options, and fifteen new animated visor colors.

Season 7: Elite saw the inclusion of seven new Halo Online armor permutations for the Elites. Additionally, it will include new forearm and leg customization, allowing players to choose between the new seven harnesses or the default Combat harness. The season also added seven new techsuit options. Season 8: Mythic will include new armor, visors and back accessories alongside skins for weapons and vehicles.

Mistakes

 * In reusing tooltips from Halo: Reach's appearance menu, the updated customization menu for Halo 3 in Halo: The Master Chief Collection now erroneously states the choice between a Spartan and Elite player model is only applicable to appropriate, species-specific gametypes, despite the option being available regardless of gametype.
 * Additionally, when hovering over the menu element to change Elite armor permutations, the game erroneously states the option is to change Spartan armor. This would be fixed with the release of Halo 3: ODST on PC.

Miscellaneous

 * A certain conceptual helmet seen in The Art of Halo 3 greatly resembles the AIR ASSAULT-class Mjolnir set that'd later appear in Halo: Reach.
 * In Halo 3, the neck of an Elite (regardless what armor permutation used) is completely immune to any form of damage except for a shot from an overcharged Plasma Pistol. In addition, the projectile will simply pass through the neck, as though the neck wasn't there, without a blood spatter. This is because both Elites and Spartans have similar models.
 * Many people speculate that hitboxes of the Spartans and Elites are shared but this is not true. While Bungie has officially commented on the hitboxes, they regard the size of the hitbox not the arrangement. Hitboxes are an unseen registry mechanic, which fall into the player models. They determine whether or not something has collided with the player. If an Elite is facing profile (sideways), and a shot is fired underneath the head (to where a Spartan's chest would be), the game will not register a hit. The head "hitbox" is forward more on Elites than it is Spartans.