Yes I think you can Im pretty shore you can go up to brig of field marshal.
At the point were you get 600,000 cR you will be a COMMANDER! This is the rank after Lt. Colonel Grade 3.
Inheritor.
To get credits in Halo: Reach with a silver, or offline account, you need to play offline Campaign, Forge mode, or local Custom Games.
you don't.
no you cant
It is unlocked at the rank of Colonel on Halo: Reach and costs 1,200 CR
No one knows for sure, but it will most likely be when the majority of players start to reach the level cap ( Lt. Colonel Grade 3)
mabeye your sever is offline
there are sniper shoulders in halo reach i dont know what that guy was smoking check youtube.
Reach Lt. Colonel first, then check the price.
Just play a lot of campain.
Lt. Colonel