While a friendly NECRONS unit is within 3" of this Fortification, models in that unit have a 5+ invulnerable save against ranged attacks.
Phase-shifted Cover:
Each time a ranged attack is allocated to a model, if that model is not fully visible to every model in the attacking unit because of this Fortification, that model has the Benefit of Cover against that attack.
Damaged: 1-7 wounds remaining:
While this model has 1-7 wounds remaining, each time this model makes an attack, subtract 1 from the Hit roll.
Fortification:
While an enemy unit is only within Engagement Range of one or more FORTIFICATIONS from your army:
That unit can still be selected as the target of ranged attacks, but each time such an attack is made, unless it is made with a Pistol, subtract 1 from the Hit roll.
Models in that unit do not need to take Desperate Escape tests due to Falling Back while Battle-shocked, except for those that will move over enemy models when doing so.