u can either buy all helmets (and attachments) or just ask a hacker if he knows p.s. if u hack u could get reported so only use in private matches or split screen cause i know a hacker who got reported. :)p.s.s. you must click pilot after all helmets are bought cuz if u know how there are attachments for some helmets it is one of those for the pilot helmet. - gamertag is SoulKeeper62200 (NO SPACES)
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Commander
He is wearing the Commando helmet that you unlock by ranking up.
It is actually called something else that I can't remember, but you unlock it in the E.V.A. helmet as an accessory after you buy every other helmet and accessory.
his helmet is a grenadier
Unlock Halo 3:ODST's Campaign Complete Achievement. Once you beat the ODST campaign, visit Halo Waypoint on the dashboard to unlock the item.