Damn right I'm into that. Only I'm more used to be in a concrete bunker during winter. My unit built one at the Rensellaer site. You guys should come to it for the next event this April. It has firing ports, bunks,a stove, and a steel door. I love it.

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"Front leaning rest position"
"Move"
"In cadence, exercise....1, 2, 3" (My favorite thing to hear at 5 in the morning.)