I shall not order any man to go anywhere, or do anything, that I would not do myself.

On this you can rely.
"In case of my death, the authority falls on Major Bohannan.

He is today the only man who knows my plans, and with whom I have had any discussion.

If we both are killed, then you can elect your own leader.
But so long as either of us lives, you have no authority and no redress.

I hope that's perfectly understood.