Okay, it'll be some time before we get our Combat Manual: Toaster Worshippers ( O0 ), and I'm playing with force building for the glory of Jerome Blake.
Yes, ASC contains a rule for Choirs - six OmniMechs, six squads BA. But The WoB is known as masters of combined arms within the lance/platoon structure - ie. the Level II. It's quite common to have some 'Mechs, some vees and some BA all in the same Level II.
Unfortunately the current ASC doesn't make it easy to build Level IIs, even swiping the "demicompany" tweak from CM:Mercs.
There's always the "Ideal Role" back-door. So I can for instance build a Level II consisting of two Vanquishers, two Palmonis, and two Tengus, for example. We miss on the "normal" assault requirements for size and minimum armour, but as they're all Juggernauts, it all works.
The problem comes when using more common WoB battle armour, or even infantry, most of whom are "Ambushers". So for example if I used Phalanxes instead of Tengus, it stops being an assault lance.
Would it be sensible/appropriate/workable to use something like the following, until CM:WoB comes out:
When determining force building, when a unit is carried fully by another unit (eg. MEC units with assigned OmniMech in the unit, XMEC units with assigned 'Mech, or units with CAR with assigned units with sufficient IT capacity), ignore the carried unit.
W.