Expecting the Unexpected

Usually, the things you'd never expect to happen are most effective.  Simple logic dictates this.  Foreseeing something inspires preparation, even if it's just mental preparation.  Preparation reduces effects.  If you don't see it coming, it's hard to dodge.

A few unexpected hits in a row can be more than disconcerting.  Trying to climb out of a crater is hard enough without incoming rounds digging the hole deeper.  At times, it can seem like there's no way up.

There's no option, when unexpected events occur, but to keep going.  There will be setbacks.  Stopping only exacerbates them.

The unexpected will happen.  Solutions won't always be forthcoming.  Knowing that your plan is to put your head down and move forward puts you ahead of the game.