This page explains both how to successfully complete pirate massacre missions, and the effect on the BGS (Background Simulation). Use the tags above to read about related items, together with similar/related functions in-game.
Massacre missions show 3 ship icons against a target.
Pirate Massacres involve killing a number of pirates, so you are usually fighting an Anarchy faction.
Functional States: All states including War
Target/Source Info: FOR the faction for whom you want to raise influence, and in war or general, AGAINST the faction you want to destabilise
Effect on Player: Gain REP & INF with source and lose it with target factions (choice of rewards).