[Pyros]

Just 2 more comments:

1. Today I will try to prepare also a sample primary to present the effects of the secondary to the campaign structure.
2. The player who will contest the arty park in the secondary mission will gain the NO HOSTILE ARTY (or reduced), but this will also have 3 more side effects:
a. The player will have a penalty -5 turns
b. The Aux AirCav spt assets will become available several turns later due to resupply from previous mission
c. The enemy will be slightly better prepared/better defensive positions (because of the delay of the secondary mission).

If in the other hand the player had chosen not to engage the arty camp on the previous secondary mission then he would:
a. Face hostile arty on the primary mission (much more)
b. Caught the enemy somehow unprepared (surprise)
c. He will earn an addition of 10 more turns in the primary mission length
d. The availability of his AirCav spt assets will be sooner (since he stayed out of big troubles in the secondary mission the readiness of the Air assets is higher.

In other words, every decision of the player may/should trigger/alter several parameters/options/features

Another example of a M.C.S.A. mission would be to give the choice to the player to decide wether he wants to split (between secondary and primary) or he wish to keep/use all the support assets during/for the primary mission.
The secondary will receive only a very small fraction of the support assets (nothing like the current secondary - due to sample you have available all the support assets).

cheers,
Pyros