The first attacks by the pirate ships were surprising, fast and effective. They waited until they could analyze the disposition of the forces in the mining systems. They selected the most optimal entry points to attack ships or small groups of ships, but above all, they chose targets that could not be helped in time by reinforcements.
By concentrating the attack on the enemy conventional ships, not only did they focus the entire attack on the war weapons of the grim reaper type ships, but the mechas and fighters themselves were able to better fulfill their mission. A rapid and unmitigated destruction.
The mission continued to occur with continuous attacks and harassment; also, the harassment of the angelic ships with exits and entries into the galaxy on cargo ships or small convoys was successful.