Well now any capable Bank Robber; will tell you, that planning how to get in there and committing the heist is the easy part of the enterprise. The really clever and important part, is planning for getting out of there in one piece with the objective secured, the loot, that is! This is a topic of discussion in every major prison in the world.
One would have thought, that this principle of planning an exit Strategy and the required construct of appropriate tactics to achieve the accomplishment of this; Would be a standard at Westpoint Military Academy?
Recent events suggest otherwise. Twenty years of casing the joint, then having to scraper empty handed; Criminal really!