How to get all armors in Halo 3 ODST, 2nd Multiplayer disc?

[AgentK]

how do u get all the armors on the 2nd disc if halo 3 odst,
the second disc is halo 3 multiplayer so how do you unlock the armors such as hayabusa and stuff when you dont have the original halo 3 disc

 

[Robert]

try unlocking some achievements from halo 3 xbox live, that should almost work, if it doesnt, try checking the achievement list and look for any xbox live achievements?
try these

Unlockable Armor
Body Pieces

Spartan
EVA - Beat “Tsavo Highway” on Normal or harder
EOD - Beat “Tsavo Highway” on Legendary
Scout - Unlock the the “Too Close to the Sun” Achievement (Destroy an enemy banshee using the Spartan Laser or a missile pod)

Elite
Flight - Beat “Tsavo Highway” on Heroic or Legendary
Ascetic - Unlock the “Up Close and Personal” Achievement (Kill five enemies via melee attacks or assassination)
Commando - Unlock the “Triple Kill” Achievement


Shoulder Pieces

Spartan
EVA - Beat “The Ark” on Normal or harder
EOD - Beat “The Ark” on Legendary
Security - Score 750 Gamerscore Points
Scout - Unlock the “We’re in for some Chop” Achievement (Destroy an enemy vehicle with a piece of equipment)

Elite
Flight - Beat “The Ark” on Heroic or Legendary
Ascetic - Unlock the “Overkill” Achievement
Commando - Unlock the “Killing Frenzy” Achievement


Head Pieces

Spartan
EVA - Beat the Campaign on Normal or harder
EOD - Beat the Campaign on Legendary
Security - Score 1,000 Gamerscore Points
Scout - Unlock the “Used Car Salesman” Achievement
Mark V - Unlock the “UNSC Spartan” Achievement (Reach Sergeant rank online)
ODST - Unlock the “Spartan Graduate” Achievement (Earn 5 EXP or Beat 10 ranked matches)
Rogue - Unlock the “Spartan Officer” Achievement (Advance to the Spartan Officer rank online)

Elite
Flight - Beat the Campaign on Heroic or Legendary
Ascetic - Unlock the “Steppin’ Razor” Achievement (Get a triple kill with the energy sword in a ranked online free-for-all)
Commando - Unlock the “Overkill” Achievement