Unrelenting Firepower

Models in this unit can make attacks with ranged
weapons even if their unit is within Engagement
Range of enemy units, but each model can only
make such attacks against enemy units that their
unit is within Engagement Range of, and each
time they do so, subtract 1 from that attack's hit
roll. In such circumstances, models in this unit
can target an enemy unit even if other friendly
units are within Engagement Range of the same
enemy unit.