We do have a SCH for this fight, but as a replacement we ran 1-4 with 2x WHM this week.
The main purpose of the fight is to further explore the possible scenarios and how people can deal with them.

What specifically does SCH provide over WHM in this fight?

Aldo before DS?
Enh.Virus? (I don't know if DS is physical or magical)

Thorauku suggested having 3:4, we can tank it having 3 players, what's the argument against this method? Honestly it looks to simplify the issue.