You're right. It was a typo. I should have written, "Keep living your best life, SGM."  Or written it out, "Sergeant Major."  I was trying to be friendly and funny with a man I respect.

But as for the rest of your comment, I take issue with that characterization.  I would be the last one to ever describe my military experience as "vast."  And I don't think my commanders would agree with you that I am "playing soldier."  I do find it a little ironic that you would take that line of attack on my character on this day, of all days.