How are projects managed at war? Do they try to go Agile, or it's mostly waterfall? Please share you knowledge and experience.
Most important two sentences in the operations order is the mission and commanders intent: If all else fails, get this done. And this is why.
This leaves lots of room (and expectation) for iteration and innovation along the way as things inevitably get f'd up with a dynamic enemy.
Periodically, you will refresh the opord and start the iteration again. This is practiced ALL the time by combat units at every level through simulations and on the ground training.
Source: was an infantry officer.
Think more like a function, continuously iterated. While War = 1 Observe; Orient; Decide; Act;
The Pentagon Wars [1] is an interesting book about how military systems are developed. They also made a movie.