1- I used the suicidal and fearless personalities on previous versions of my mod, but now I made so the Scourge can simply fight with any possible personality with similar effectiveness.
2- IA don't know Hierarchy weaknesses and The Scourge is not a playable faction so I can't really "make them do stuff" in battle. (I do this behind the scene, editing pretty much every aspect of the ships to make them behave the way I want).
3- There's no fight, even If I add ships and weaponry. When I add something the faction it doesn't change the overall strenght, they just get diverse, more variegated and more fun to play against.
4- There's no strategy with the Scourge, they either swarm their enemies or they don't (again, it's not a playable faction, I'm putting a lot of effort designing it this way). In this case they don't (and it's alright, their are meant to be defeated with vanilla stats, if you fly a decent fleet), but the overall fight vs the Hierarchy (same FP, 600 vs 600) is not even worth watching after a few minutes: when I tried the mission I just watched the map with everything in autopilot xD.