No, but then you're in Unbound territory.
If you want a Battle Forged army, then everything has to be in a formation.
As far as I can tell formations are unbound unless they'll go in a CAD but get certain command benefits which normally you don't get with unbound armies
But its really difficult to figure out what the smeg is going on especially after reading the ORK codex many many times trying to get my head around it.
So is the Formation in the ORK codex of 6 boyz squads + 1 Gretchin squad bound or unbound 6 troops is your maximum on a CAD with the Codex
While I understand that GW no longer gives a stuff about bound and all these supplements appear to be aimed at playing unbound or mini apoc games.
Anyways anyone any idea how these are being treated at local comps & clubs?
No you can't, an Ork Horde detachment is not a Combined Arms Detachment, you don't get Objective Secured, for example and models that roll 10" or more on their charge get Hammer of Wrath. A Formation, as it states in The Rules, is a special type of Detachment, you can't have Units in both a Formation AND a Detachment.
An Army is Unbound or Battle Forged, if you have units not in a Detachment, like Combined Arms or Ork Horde, or a Formation.
Okay so I got the name confused, he did say on a CAD with the Codex; and CADs aren't in the codex, so you know what I meant same as I did. The ork one can have 3 & 9, but the point is how do formations work? I do remember seeing somewhere when they first arrived on the scene they didn't take up a slot as such. But then we didn't have 2 types of army.