| Unlockable | How to Unlock |
 EVA Helmet
| Complete Campaign on Normal, Heroic, or Legendary |
EOD Helmet
| Complete Campaign on Legendary |
Hayabusa Helmet
| Collect all Skulls |
Security Helmet
| Get 1000 gamerscore in Halo 3 |
Scout Helmet
| Complete "Used Car Salesman" Achievement |
ODST Helmet
| Complete "Spartan Graduate" Achievement |
Mark V Helmet
| Complete "UNSC Spartan" Achievement |
Rogue Helmet
| Complete "Spartan Officer" Achievement |
Recon Helmet
| Bungie Employees |
Flaming Helmet
| Bungie Employees Only |
EVA Shoulder Armour
| Complete The Ark on Normal, Heroic, or Legendary |
EOD Shoulder Armour
| Complete The Ark on Legendary |
Hayabusa Shoulder Armour
| Collect 9 skulls |
Security Shoulder Armour
| Earn 750 out of 1000 Gamerscore Points for Halo 3 |
Scout Shoulder Armour
| Complete "Mongoose Mowdown" Achievement |
Recon Shoulder Armour
| Bungie Employees |
EVA Chest Armour
| Complete Tsavo Highway on Normal, Heroic, or Legendary |
Hayabusa Chest Armour
| Collect 5 skulls |
Katana (Add-On)
| Earn 1000 out of 1000 Gamerscore Points for Halo 3 |
EOD Chest Armour
| Complete Tsavo Highway on Legendary |
Scout Chest Armour
| Complete "Too Close to the Sun" Achievement |
Recon Chest Armour
| Bungie Employees |
Flight Helmet
| Complete Campaign on Heroic or Legendary |
Ascetic Helmet
| Unlock "Steppin' Razor" Achievement |
Commando Helmet
| Unlock "Overkill" Achievement |
Flight Shoulder Armour
| Complete The Ark on Heroic or "The Storm" on Legendary |
Ascetic Shoulder Armour
| Unlock "Overkill" Achievement |
Commando Shoulder Armour
| Unlock "Killing Frenzy" Achievement (Still Bugged as of 10/05/07) |
Flight Body Armour
| Complete Tsavo Highway on Heroic or Legendary |
Ascetic Body Armour
| Complete "Up Close and Personal" Achievement |
Commando Body Armour
| Complete "Triple Kill" Achievement |
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Members: 9
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