Horses!

[Darthvegeta800]

Thanks for all the info.
Another question... what's the impact of 'commander' and 'initiative'.
I presume morale is highly worthwhile, keeping troops from fleeing?
How close should i best keep my commander to my men? Given that i love cavalry flanking, he sometimes tends to move away relatively far from his men.

[ChrisG]

The commander ability can rally your troops faster if upgraded.

Each unit have it's own AI so if you upgrade the initiative,troops start making things on their own.
Attacking a nearby enemy or change position if they are under fire.

Yes, morale is very important.But an upgraded irregural unit can cost much more to retrain.

[Darthvegeta800]

Thanks for the info.
Though given the accumulated army exp i can't see one fielding unupgraded irregulars no matter the cost.