Flooding the city would accomplish approximately nothing. [Note that he's not saying he couldn't do it. If he wanted to. But he doesn't want to.]

Name the time and place and I'll be there. I'm tired of not having some sort of plan. [He's tired of people not talking and keeping secrets. Granted, some things should only be trusted with select individuals, but too much is being kept to too small groups, at least in the mind of a man who's used to having an entire country (and its army) behind him, working together toward the same goal.]