One piece of guidance that the military cant give soldiers is what to do when your command structure is compromised and beholden to the enemy. So he is doing what any soldier under fire does and is evaluating and responding to the situation as it evolves.

A point he made that I dont think I have heard floated enough is that one does not simply debilitate all active duty military personnel on a whim, in peacetime. A hostile action like this is a precursor and an advance mission to actual live combat situations beginning. Which may have been sidestepped with Trump being reelected but that is yet to be seen.