Newbish question

[GrudgeBringer]

(SIGH) Ok...so much for that idea.

I have figured out the tactic of putting small groups of 5 or so in front to get archers and Inf to attack chaff units.

Is there any limit to the number of seperate units you can have in one army?

I also keep seeing references to army setup but I look at it and just don't see that many options.

I fancy myself as a fair tactition but without terrain, Wind, weather, ect there just doesn't seem to be much you can do except use Cav to attack rear areas and use skirmishers to draw fire from enemy units.

Am I REALLY making this too simple?

I would HAVE to think there is more to the battle sequence than meets the eye or this game would not have 3 editions working on a fourth.

So, if anyone would like to take pity on an old man and kind of point me in the right direction I would be much VERY thankful!!