You have to do the campaign levels on heroic or legendary and complet the campaign for the achiev and you get armour, ou also get about 3 pieces by getting achievs in matchmaking.
You unlock the odst armor by unlocking the UNSC SPARTAN achievement
yes you still unlock the armor. you and the player that your playing with unlock the armor. =] =) =p q=].
You have to be an warrant officer in halo reach to unlock the helmet you also have to go to halowaypoint and unlock the armor.
Actually you don't unlock armor you unlock different characters and their armor. In order to do this you must complete the story of the game. Do this on any difficulty to unlock all the characters except Dare and her Recon Helmet. She is unlocked through the completion of the game on legendary.
No, in Halo 2 you can not unlock armor.
You unlock the armor.
You can only unlock the armor during Mogloween/Halloween (and use outside Mogloween with the Armor Closet).
If you beat it on legendary, co-op or solo, you unlock the spartan VI armor.
To unlock Recon armor in Halo 3, you originally had to beat all of the VidMaster achievments, but the armor is now available to all players. To unlock the recon armor in Halo: Reach you had to pre-order the game and you would get a long (25 character) code for the recon armor DLC. To unlock the recon armor in Halo 4, you had to either pre-order the game or simply buy the armor with your in-game credits.
Armor King is not a playable character in tekken 5, but you can customize King II, but not in dark resurrection.
well this is simple, you need 25 silver keys to unlock it btw it has the best armor in the game in it, arcons armor, its like a silver version of plate armor, i have 29 silver keys and i need 1 more for the 30 keyed chest but i cant find it LOL
go to http://hubpages.com/hub/Halo-3-Armor