What happens to a unit that fails a Panic test will depend upon how many casualties it has suffered. A unit that has suffered only a few casualties will Fall Back in Good Order, whereas a unit that has suffered a significant amount of casualties will turn tail and flee.

Fall Back in Good Order

If a unit still contains more than half (50%) of the models it contained at the start of the battle, it will Fall Back in Good Order. The unit moves directly away from the enemy unit whose shooting caused it to make the Panic test.

Flee

If a unit contains only half (50%), or fewer than half, of the models it contained at the start of the battle, it will immediately turn tail and flee. The unit flees directly away from the enemy unit whose shooting caused it to make the Panic test.