Any Kiowa (or army helo) maintenance persons out there?

Having a friend who recently joined the Army, and is off to Basic soon, and
me knowing little about Army maintenance and flight ops...

His MOS will be 15J (OH-58D Armament/Avionics/Electrical System repair)

He's told me his recruiter said he'll be "the crew chief and the crew chief
is the copilot"

From what I've read at goarmy.com....a 15J is a standard ground crew
weapons/avionics specialist. Not a bad job, but not crew chief, and
definately not 'copilot'. The 15S is the crew chief slot.

Knowing how truthful recruiters are...I'd like some knowledgable thought
before we send this guy off with the wrong impression.

Opinions?

Pete