[OneWingedShark]

>Anybody want to give OneWingedShark an education?

Already got it; I asked an expert:
http://www.freerepublic.com/focus/news/2238070/posts?page=53#53

PS - Why do you think I put the part about sailors possibly having to do it? I know that’s part of the navy’s training (and therefore Marine), but the part about the depth and weights is what made me wonder about it. {10lb weights? 5, 15 20 lbs? - It’s so vague that I assume more weight.}

[A.A. Cunningham]

I know that’s part of the navy’s training (and therefore Marine),

Marine Corps training is independent of what is done in the Navy. Your assumption is AFU.

[RaceBannon]

weighted feet is most likely a reference to wearing full combat gear, boots and all. No one I saw ever wore ankle weights as any additional weight, everything we had on was enough.