You have to buy each and every single helmet and you get it unlocked. It's called the haunted visor.
You also need to be the required rank which I believe is Inheritor, which is the highest rank. You can't even see it until you are a high enough rank also.
red
no
Buy all the other ones, I think.
No, it just looks awesome!
sliver,gold,blue,defualt, and black
Yes, Emeil carved a skeleton's face into his visor.
Sadly there isn't a red visor colour but if there where it would look pretty funny. Those red visor colours you have probably seen on the internet they are just photoshop
You can't unless on halo reach u enable a certain skull that disables the HUD
In Halo: Reach, the Cowbell skull increases the acceleration scale from explosions by 3x. In other words, the radius of the explosion is increased and you'll need to be farther away if you want to avoid receiving damage.
You click on the tab that says skulls and you click on the skull.
yes, you get JFO armor, and you get mark IV armor, and also a gold visor but that is the max rank.
around warrant officer the black visor color will come and its Lt. colonel