MAS
Deity
When in an army, do spearmen/pikemen defend and archers shoot at the 'rush' and swordmen fight, as a team. Or is it all one to one, one at a time?
Wondering how to build a good army, whom to place in it.
The army will act as one single unit with the defense of the highest defender and the offense of the highest offender, the life of all hitpoints of the units combined, and the speed of the slowest unit +1.
I would suggest you specialize your armies, so if you need an army to defend your stack of doom in enemy terrain, fill it completely with your most advanced defenders.
More often you will not need a defensive army, so you should probably fill it with your most advanced offensive units. Make it all the same units, and preferably fast moving ones. An army of cavalierly has a movement of 4.