Your rank is higher than his, but you're retired, so
technically he doesn't have to follow your orders. Protocol dictates that he should, however, differ to you within reason.
This is the chart I've been using. It doesn't compare COs and NCOs except by pay grade, but you're both COs, so technically that doesn't matter for this interaction. I'll try and keep things simpler from now on.
BTW, does anyone notice what all of the soldiers have in common?
EDIT:Nanshork, I almost flipped out because I saw on your Char. Sheet that your rank was Corporal, and that that's what you typed when you introduced yourself, and so a Lieutenant Colonel WAY outranks you, but then I checked the prep thread, and you actually chose Colonel, which is a higher rank that LC. Crisis averted. I was going to have to change the game thread and the OOC thread, and I didn't really want to do that.
(You may want to edit the post where you said Corporal in the game thread)