You hear it right here I can see the unique skins for both the UNSC and the Banished the UNSC ones like a tiger stripe look too it.
To turn the skins on and off you go under Options & Extras and under Game in there should be tabs down in the list :)
UPDATE: The Skins are only available for the Xbox version for the meantime the PC version will have to wait until they receive the Halo Wars 2 update in a few days.
Here is a link for the who's that think I'm pulling your leg.
http://xboxdvr.com/gamer/FireGhost90/screenshot/5882688
To turn the skins on and off you go under Options & Extras and under Game in there should be tabs down in the list :)
UPDATE: The Skins are only available for the Xbox version for the meantime the PC version will have to wait until they receive the Halo Wars 2 update in a few days.
Here is a link for the who's that think I'm pulling your leg.
http://xboxdvr.com/gamer/FireGhost90/screenshot/5882688