Oh happy days
The FAQ is finally out for VC and yes you can scream into units in combat that the screaming unit is not itself in combat with and this with Skitterleap less than a week away!
The dual Terrorgheists I'm using just got a bit better.
Also nice to see the overrun/crumble issue has been officially clarified to no a charging unit that crumbles and undead unit can in fact not overrun.
Get it here