Galactic Rifles
Fire Rifles (Battle): Like in a battle, choose a system and collect skirmish dice for fresh Loyal ships there, choose a defender in an adjacent system, roll the collected dice, and deal 1 hit to the defender per 
rolled.
(Hit ships before buildings.)
Q: Is Fire Rifles modified by abilities that modify Battle?
A: Abilities that modify Battle do not apply to Fire Rifles. For example, you cannot use Skirmishers to reroll the dice, and you cannot use Gatekeepers to collect more dice.
Q: How does this interact with the Imperial Truce Law?
A: It causes harm in the target system, so you cannot target a Regent in a system with Imperial ships, but you can use Galactic Rifles from a system with Imperial ships.