I was a member of the US Army Honor Guard, AMA!
I saw that people wanted an AMA after seeing the picture of the changing of the guard on the front page. I was never a tomb sentinel, but I did do many ceremonies in Arlington National Centenary (ANC). I was stationed at Ft. Myer in the 3rd US Infantry Regiment from APR 2009 until NOV 2011
Proof This is the plaque that my platoon gave me when I left.
Edit 1: Taking a quick break, but these are some awesome questions!