If I take back from the top. Step 1) the player wants to have a fireteam, and invoke this rule: Step 2) The player verifies what are the "Requirement of this rule", and invokes this set of rule: Here the player is instructed to choose between Troopers listed as being able to compose Fireteams; belonging to the same Unit (unless it is a special fireteam); and that are from the same combat group. Step 3) If the players wants to create a duo/haris/core, he must also check the requirement for that specific type of fireteam. In the case of duo, that rule adds the following requirements: From this, we don't learn much more actually. You just have a limit of 2 Troopers, of the same unit or a combination indicated in the Sectorial list. The important addition is that One of the member must have the called skill. Here, it only ask for any 1 member to have that skill, so a choosing an ABH Duo is legit. Step 4) The only extra restriction for Wildcard is the note under Creation of a fireteam. Its only effect is that you can't make a fireteam composed of nothing but Wildcard. So let's take an example. The player selects two troopers (ex: Cordelia and ABH) that can compose fireteam (the chart shows that both Cordelia and ABH can form fireteams); both troopers must be of the same unit unless they have special fireteam in which case you follow their rule. Cordelia says she can make a Cordelia+Scarface fireteam. ABH says it can be part of any fireteam of this Sectorial (that any includes regular and special fireteam; any means any). Since we are making a Duo fireteam, we must check that one member has the Duo skill. In this case, the ABH has duo and therefore the fireteam is valid. It is true Cordelia has Duo; but it is irrelevant here as we only need that "One of the member must have it" and ABH already satisfies that condition. The extra step where you must verify that the member with the Duo skill is not a wildcard but an original member does not exist in N4. The precision that "One of the members must have the Fireteam: Duo Special Skill." excludes Wildcard that are included in the fireteam does not exist.
I think cordelia + ABH is a bad example here, because Cordelia has the duo skill and the ABH is a wildcard, so whetehr or not he has the duo skill is irrelevant. But by your logic, are you trying to say that you could take the scarface + cordelia special fireteam, and swap cordelia out for an ABH, based on the fact that A) the ABH is a wildcard, and B), has fireteam duo, therefore satisfies the requirement that at least one member of the team has the duo skill?
Both have the skill (as you can see below) and both are allowed to form a special fireteam (which is their only chance for them to form a Duo anyways since no two Scarfaces or Cordelias exist) thus the way I presented it is correct. I'm aware though, that this special fireteam might not be allowed to exist twice at the same time... The new Diggers and Triphammers are also added to their respective sectorials. Note that I just had to assume that the Triphammer (AVA 1) is allowed to form Duo Fireteams (the official Sectorial charts aren't updated yet) with Wildcards in DBS and StarCo.
I'm going to revisit my graphics in the hope there won't be a reason to provide them at all anymore :)
Maybe Morats were just a bad example and showing another Sectorial's Fireteams composition overwiew would've cleared things up a bit. I hope the fireteam options in every Sectorial get tidied up a bit :)
I'd expect Morats probably were a bad example, MAF were the orignal mixed link faction so i'd expect they're probably quite a high level example but they are the faction that's getting redone. I think a fair bit of confusion is the use of the term morat in the morat army which used to have a rule called morat. That and Morat names are at At or Oks doesn't particularly help for differentiation. Pretty sure I got the concept of how it's going to work from the video (which has me super hyped for the changes, so much modularity similar to the un-nesting of skills) but I am also a morat player so the example works well from my perspective.
I really hope that Corregidor will be severely restricted in their fireteam composition, to counter their overabundance of toys.
The new charts are pretty easy to grok IMO the video has the issue that it was showing off the new Fireteam rules, and also showing how they work in the Morat Sectorial. Having it integrated into Army obviously makes things easier, and once you understand a few bits of notation (* in the minimum column, labels in parentheses, Wildcards) everything feels really clear.