KWC exists and is detailed on the wiki. It was originally analogous to the Naval Postgraduate School, I believe, meaning it's where senior officers went for specialized training and flag staff training. Andrew, at some point, began offering correspondence classes in the 5th XF when he ran that and allowed prior enlisted to become midshipmen/training officers through that program. Today, I think it acts as the main military academy for new officers, transitioning officers, and still retains its programs for senior officers.