>>96406943
You fire 2 HKs per Aethon per turn for 2 turns. Thats 16 HKs out of 4 aethons over 2 turns. Thats like, 9 HP onto AV14 over 2 turns from just the Hunter Killers. Not even considering the lascannons.
Also aethons are the only war machine you can still takes in squads of 1 to 3 though personally I think 2 sentinel squads are the best.
The Aethons pretty good now ngl.