Armor: Helmet -COMMANDO UA/FC-I[2] , Left shoulder - COMMANDO , Right shoulder - MJOLNIR MK. V , Chest - ASSAULT/COMMANDO , Wrist - TACTICAL/TACPAD , Knee Guards - FJ/PARA , Visor color - GOLD , Firefight voice CARTER S-259
His colors are: Primary - Blue , Secondary - Silver.
The other post was off with the RIGHT SHOULDER and CHEST.
granadier
Technically no, the only way to wear armor in halo 3 that you can wear in reach is some of the basic armor that was already available but the new pieces of armor such as the security shoulders, sapper chest with robot arm, an gungir helmet are only available in Reach.
the commando helmet
Primary: Blue Secondary: Silver
He is wearing the Commando helmet that you unlock by ranking up.
In halo he wears mark 1 armor in halo 2 he wears mark 2 armor
Mark IV is a type of armor in the game: Halo 3. This is a evolvement from the Mark V armor in the previous Halo games; Halo:Combat Evolved and Halo 2. The armor is also called the Mark 6. In the game it is an armor that is worn by the main charecter: Master Chief. In the multiplayer game it is an armor that you automaticaly wear in the matches.(there are other armors to wear during matches)
ODST or Orbital Drop Shock Trooper armor
Jorge wears Grenadier
when playing multilayer, enable "recon armor." Also, if you are a bungie employee, you get Bungie armor, which is the same as Recon Armor except different design and your head wil be on fire.THE BUNGIE ARMORIS JUST BODY ARMOR. THATS WHAT MAKES YOUR HEAD ON FIRE. U CAN WEAR ANY HELMET WITH IT.
Achievements and avatar awards.
Grenadier helmet, grenadier coller but I don't know the shoulders.