So my SUPER scientific method was to spawn a series of T3 Land HQ (16000 HP) and use ctrl-k to drop things on them. Lol.
I don't know what has changed the Ahwassa either, but it very reliably reduced a 16000 hp factory to 8000 hp. Likewise, a 10000hp SACU portal would be left with 2000hp. I don't know much about blueprints, but I couldn't find anything from poking around in the hooks either, which is where I thought it would be, right? And I don't use any other Sim Mods that would touch any units, let alone the Ahwassa, so I don't know why it's doing 8000 instead of 7000.
Czar is the real concern though. It was killing a 16000hp Factory dead, so it's doing more than twice the 7000 damage it's supposed to be doing. I couldn't find air crash damage for it either tho.
As for what numbers to update the other BlackOps Units to -- If the balance team sees fit to reduce the Ahwassa and Czar to 7000 damage, I just figured using 7000 as the maximum for other large flying experimentals like the Citadel and the Gargantuan made sense. I don't have a fancy formula, except to bring them in line with the others.