This section contains some additional rules concepts that are most frequently used while making attacks.
Line of sight is used to determine visibility between models. For an observing model to have line of sight, it must be possible to draw an imaginary straight line, 1 mm wide, from any part of that model to any part of the model being observed. This line is the line of sight. While doing so, other models in the observing model’s unit and in the observed model’s unit are ignored. Other models and units can be either visible or fully visible to the observing model, as shown in the example. Note that terrain applies additional rules to visibility (13.07).
When a rule references a visible unit but does not state which units that unit must be visible to, it must be visible to the unit that is using that rule.
Example: You target a friendly unit with a stratagem that says 'select one visible enemy unit'. That enemy unit must be visible to the friendly unit you targeted with the stratagem.
If any part of another model is visible to the observing model, that model is visible.
If every part of another model that is facing the observing model is visible to the observing model (so the only thing blocking visibility to any part of that other model is that model itself), that model is fully visible.
If one or more models in a unit are visible to the observing model, that unit is visible.
If every model in a unit is fully visible to the observing model, that unit is fully visible. When determining this, the observing model can see through other models in that unit.
Some attacks or rules inflict mortal wounds on units. Each time a unit suffers one or more mortal wounds, its controlling player must resolve the following sequence for each of those mortal wounds, until either all of them have been inflicted or that unit is destroyed:
1. Select Model: Select one model in that unit by following the first instruction below that applies:
models, you must select one of those models.
2. Resolve Damage: The selected model loses 1 wound. If this reduces that model’s remaining wounds to 0, it is destroyed.
MORTAL WOUNDS AND NORMAL DAMAGE
When resolving attack dice, if those attacks inflict a mixture of both mortal wounds and normal damage, resolve all of the normal damage first, then resolve all of the mortal wounds.
Normal Damage is damage that was inflicted on a model as a result of a weapon’s D characteristic, rather than by other means such as mortal wounds. Mortal wounds dealt in addition to normal damage from an attack are part of that same attack.
To make a hazard roll for a unit, roll one D6: on a 1-2, that roll fails and that unit suffers:
The term 'Hazardous test' is the same as hazard roll.