it does! but sadly the thickness of it does not decrease your damage ratio... :)
There is two ways to get it #1 unlock all of the armor #2 is to become the highest rank in halo reach
major with 140,000 points
you get it at either corporal or below
You have to be an warrant officer in halo reach to unlock the helmet you also have to go to halowaypoint and unlock the armor.
you would only lose your armor that is a higher rank then seargent.
yes, you get JFO armor, and you get mark IV armor, and also a gold visor but that is the max rank.
You have to be the last rank and 100% Armor completion
i think u have to reach a certain rank and buy his helmet and you can change your color to his color i looked at his picture on my computer and copied his armor
Most armor is unlockable by rank, then made buyable with credits. Some of the halo reach armor is unlocked via halo waypoint (downloadable in xbox dashboard). Other armor such as the flaming helmet are unlocked from a code that comes with certain sets of the game. ( legendary edition, pre-order, etc.
In Halo Reach I think that the main objective is to rank up in different levels, upgrade your armor or just to have fun and kill people or the Covenant.
The highest rank in Halo: Reach is Inheritor.
Rank of general and 270000 credits