I remember reading a book a while back that said the Roman Line up (after the Marian Reforms) went something like this.
Key
L = Legionaries
FC = First Cohort
A = Auxilia
C = Cavalry
TC = Top Commanders
R = Reserves
Scale
One L = 100 Men
FC = 800 Men
A = 160 Men
C = 100 Men
TC = Around 8 Men
R = 100 Men
Note: The Top Commanders did not include the General. The Top Commanders were people from rich families.
The First Cohort consisted of 800 men (5 double centuries of the best troops)
___________________________________________________________________
TC
C RRRRRRRR C
RRRRRRRR
LLLL
AAAAAAAAAA LLLL AAAAAAAAAA
EnemyEnemyEnemyEnemyEnemyEnemyEnemyEnemyEnemyEnemyEnemyEnemy
___________________________________________________________________
Obviously this probably couldn't work in R:TW, but i wonder if someone who has Commanding skill in-game could come up with something similar to it?