1. WMDs require 200 supplies. Do they have to be built + transported or is that just a cost every time we deploy a WMD?
-> 200 Supplies to build them. Then you have to transport them via ship to the target and decide to actually deploy them, which constitutes an action (so either orbital drop or nuke shit not both)
2. WMDs are listed as destroying 1d1 IC. Is this a mistake?
-> It is not. 1d1 means fifty fifty chance of them nuking away ICs
3. Are Spec-Ops regiments just Marine regiments with combat strength 4?
->yup just like Veterans are upgraded Regulars. As the game progresses depending on your faction they may or may not get other bonuses to differentiate them propelry from your Marines.
4. When will the new rules for fortresses come into play, next turn? (I'm for defense in depth, by the way, though it seems a little powerful - maybe have a round or two of fighting with no bonus between each defensive line as the defenders pull back, or have the strength of each successive defensive line reduce by 1?)
-> Come into play this (next) turn. Fighting over one ring of defense will continue until all of it is destroyed. So it may very well be that you fight over [0,0,6,0,0] defense ring and the defender loses twenty regiments before his troops finally decide to retreat to the next ring. So yeah you might wipe out defenders before the fortress is fubar.
I also considered that with each ring the defenses get weaker, however whether from outside to inside or from the inside to the outside im not sure yet. (aka 1,1,1,1,1 on the first ring and 6,6,6,6,6 on the last or vice versa)