INEXORABLE ADVANCE

If your army is Battle-forged, all INFANTRY
and Helbrute units in DEATH GUARD
Detachments gain this ability. Such units do not
suffer a penalty for moving and firing Heavy
weapons, or for Advancing and firing Assault
weapons. In addition, a unit with this ability can
fire twice with Rapid Fire weapons at a range of
18", instead of only being able to fire twice with
them up to half the weapon’s maximum range.