Further Thoughts.
Been trying for some time to get the idea that attacking with multiple battalions takes time to plan (you may have seen me witter on about the British Army 1954 rules)
Came up with this
An area to one side for each joint operation. This contains the Activation Card for that operation (OpAC)
When a unit card is drawn it may be placed on a joint operation stack, on TOP of the OpAC
It may only be placed on top of the OpAC if there is NO other card on top of the AC.
The OpAC may be placed in the deck at the end of any turn that no cards are placed on it
At the end of the turn card on top of an OpAC are placed underneath it.
The direct HQs of all units in the OpAC pack must be part of the OpAC. If two or more HQ's of the same level are in the OpAC pack then their HQ must be put in – if they don't share an HQ, then higher level HQ's must be put in until all units trace a chain of command to a single HQ
Example
OOB as this
TOP HQ
..HQ 1
…..HQ 1.1
…….Bn A
…….Bn B
….HQ 1.2
…….Bn C
..HQ 2
…HQ 2.1
…….Bn D
For Bn A and B to take part in a co-ordinated attack, HQ1.1 must also be in the OpAC pack. If Bn C is added then not only must it's HQ1.2 be added, but also HQ 1 to co-ordinate between the two HQs. If Bn D is added then its HQ2.1, HQ2 and Top HQ must all be added.
Note if it was ONLY Bn A and Bn D ALL 5 HQ's in their chanins of command would still need to be involved to co-ordinate- a total of 7 cards, so 7 turns to make the OpAC deck. If it was Bn 1 and 2, then only 3 turns required.
The point of putting them on one card, attaching one turn at a time, is that They all go on the OpAC card, so you are moving multiple units in your turn, plus they can combine in combat – instead of resolving a combat 1 on 1 twice, you can do a 2 on 1 combat