Historic Legion Composition

[-Praetor-]

I find that in every mod i have to half the number of triarii units to get an accurate-ish Roman legion, from 80 to 40, or from 60 to 30, whatever the mods numbers are.

2 units of hastati (80 men each) principes (80 men each) and 2 triarii (40 men each), then add the allied units... 2 on the first line, 2 on the second and 2 more on the third. Add your cavalry, skirmishers and general and you can get away with an army of 16 units, which makes the game more of a challenge. My Roman legions have always had 16 units, never 20.

but why not using just one triarii unit of 80? You could save one unit slot for the auxilia...

Or is it because you want more tactical flexibility by using 2 units of 40 instead of 1 of 80?