Editing Warhammer 40,000/8th Edition Tactics (section)

===Morale 101===
A unit loses additional models in the morale phase, in general, equal to 1d6 + casualties taken this turn - Leadership, but cannot lose more models than it has, of course. This means the smaller a unit, the less it needs to worry about Morale - a 1-model unit never needs to roll for it in the first place, since it can't be alive after taking casualties, for example. It also means the expected "further" casualties from morale start at a plateau of 0 where the unit is immune to casualties, followed by an accelerating curve up, then an accelerating curve down, then a linear curve down once the unit is being wiped out in the morale phase, so it loses one fewer casualty to morale with every additional one it took earlier. For example, a 10-model unit with Leadership 6, taking mounting casualties from 0-10, suffers additional casualties in the Morale phase, on average, as follows: 0, 1/6, 1/2, 1, 1 2/3, 2 1/2, 3, 2 5/6, 2, 1, 0. This corresponds to the unit being the following size (on average) after Morale: 10, 8 5/6, 7 1/2, 6, 4 1/3, 2 1/2, 1, 1/6, 0, 0, 0.
*The morale phase happens after the psychic, shooting, and assault phases and any casualties from those phases are added together when testing morale.