According to this, Milius re-used him as different characters a few times in RED DAWN. So he surely does this kinda thing, sure its common practice besides.
^Seems also the name inspiration for "Rexor".
*One of my pet theories was that Arnold was re-dressed as a Vanir Raider for the raid on the Cimmerian village. Arnold remebered this scene on the DVD very vividly too which makes me think it was more than just small publicity photographs and a bit of footage for the Journey to the Mounds montage.
Zula wears his headpiece in CTD, LOL!