I got scores of 9526, 9466 and 9422 today. The 9422 had two rising shadow kills thrown in. GW scoring is like the dead guild bracket advancement: Everybody has a theory.
My guild’s purple bonus is 48%, and I used Secrets of the Crypt and AW on the high and low score, and the purple Doom weapon on the middle. I would say True Dmg kills get credit for Armor dmg.
I think if Ubastet does 70 dmg and kills 1, he would get credit for the dmg to the 2nd troop but not the remaining health. The speed bonus might offset it anyway. What’s a few 100 points gonna do anyway, now that the 3 lowest scores are dismissed?