Posted by: c_raethke
I played the Halo 3 campaign at a friend's house about 3 times through, found all the skulls, had the Hayabusa and another armor that needs a certain amount of achievements to unlock, then I bought ODST and played the campaign, put in the multiplayer CD, and realized the armors were now re-locked. I found the skulls in the 3 or so new ODST maps, but the armor is still not available. Is there anything else I have to do to re-unlock it, or is it just not available playing on the ODST disk?
You can't use Halo 3 armor on ODST's campaign/Firefight disc, if that's what you're asking.