From StrategyWiki, the free strategy guide and walkthrough wiki

A new addition to Halo 3, and to the Halo series, is the ability to customize your avatar (Spartan II or Elite) with a variety of different armor types. You are able to customize your helmet, shoulders, and chest plate.

Contents 1 Spartan II Armor 1.1 MJOLNIR Mark VI Armor 1.2 Close Quarters Battle Armor 1.3 Explosive Ordnance Disposal Armor 1.4 Extra Vehicular Activity Armor 1.5 Scout Armor 1.6 Hayabusa Armor 1.7 Mark V Armor 1.8 Orbital Drop Shock Trooper 1.9 Rouge Armor 1.10 Security Armor 1.11 Recon Armor 2 Elite Armor 2.1 Combat Armor 2.2 Assault Armor 2.3 Flight Armor 2.4 Commando Armor 2.5 Ascetic Armor

[edit] Spartan II Armor

[edit] MJOLNIR Mark VI Armor

• Helmet: Available from the start
• Shoulders: Available from the start
• Chest: Available from the start

[edit] Close Quarters Battle Armor

• Helmet: Available from the start.
• Shoulders: Available from the start.
• Chest: Available from the start.

[edit] Explosive Ordnance Disposal Armor

• Helmet: You must complete the campaign mode on Legendary.
• Shoulders: You must complete the 'The Ark' level on Legendary.
• Chest: You must complete the 'Tsavo Highway' level on Legendary.

[edit] Extra Vehicular Activity Armor

• Helmet: You must complete the campaign mode on Normal, Heroic, or Legendary.
• Shoulders: You must complete the 'The Ark' level on Normal, Heroic, or Legendary.
• Chest: You must complete the 'Tsavo Highway' level on Normal, Heroic, or Legendary.

[edit] Scout Armor

• Helmet: You must unlock the 'Used Car Salesman' achievement.
• Shoulders: You must unlock the 'Mongoose Mowdown' achievement.
• Chest: You must unlock the 'Too Close to the Sun' achievement.

[edit] Hayabusa Armor

• Helmet: You must claim all 13 hidden skulls.
• Shoulders: You must claim 9 of the hidden skulls.
• Chest: You must claim 5 of the hidden skulls.
• Katana: You must unlock 49 out of the 49 achievements.

[edit] Mark V Armor

• Helmet: You must unlock the 'UNSC Spartan' achievement.

[edit] Orbital Drop Shock Trooper

• Helmet: You must unlock the 'Spartan Graduate' achievement

[edit] Rouge Armor

• Rogue Head: You must unlock the 'Spartan Officer' achievement.

[edit] Security Armor

• Helmet: You must unlock 49 of the 49 achievements. (Helmet is currently Glitched, no EXACT way of getting it.)
• Shoulders: You must unlock 39 of the 49 achievements.

[edit] Recon Armor

• Helmet: The Recon Armor is only available as a gift from Bungie.
• Shoulders: The Recon Armor is only available as a gift from Bungie.
• Chest: The Recon Armor is only available as a gift from Bungie.

[edit] Elite Armor

[edit] Combat Armor

• Helmet: Available from the start.
• Shoulders: Available from the start.
• Chest: Available from the start.

[edit] Assault Armor

• Helmet: Available from the start.
• Shoulders: Available from the start.
• Chest: Available from the start.

[edit] Flight Armor

• Helmet: You must complete the campaign mode on Heroic or Legendary.
• Shoulders: You must complete the 'The Ark' level on Heroic or Legendary.
• Chest: You must complete the 'Tsavo Highway' level on Heroic or Legendary.

[edit] Commando Armor

• Helmet: You must unlock the 'Overkill' achievement.
• Shoulders: You must unlock the 'Killing Frenzy' achievement.(Unlocked for everyone in the autopatch.)
• Chest: You must unlock the 'Triple Kill' achievement.

[edit] Ascetic Armor

• Helmet: You must unlock the 'Steppin' Razor' achievement.
• Shoulders: You must unlock the 'Overkill' achievement.
• Chest: You must unlock the 'Up Close and Personal' achievement.