You are in very fine shape, my good sir.
Seven years in Army, Special Forces (with, I assume good stories and great leadership), and a very good GRE.
Don't even think twice about your GPA (nor is it so low that you need to explain it away), and as long as the school accepts the GRE, you don't need to explain that either.
Save your word space for your more interesting stories.
And good luck to you,
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