When I was in boot camp I was a member of the drill division. They would send guys down periodically to recruit, and they were very specific. Had to be at least 5'10", I think, before they would even consider you. Then it was a very thorough drill review along with interviews.
I actually went through the process, made it through the interview for final selection. The only thing that sucked was if you were a nuke you couldn't be recruited, which we didn't find out till the end :icon_rage
I will say that their boondockers were as shiny or shinier than any corframs I've ever seen!