How do you unlock armor like the Mark V head if you only have Halo ODST?

Borrow a friends disc and do some campaign.

Originally Posted by HiwicK

Borrow a friends disc and do some campaign.

Umm.. not exactly. If you have the multiplayer disc, go online and get to sergeant rank and you should get it. The rest can be aquired the same way doing online achievements and campaign.

Seriously? Can you link to that info? I thought you had to play through some of the campaign to get the more armor..

has anyone unlocked sergeant avery johnson? apparently you need a pre-order code

its what i call a pain in the ass

lmao