Reading BoB2nd ed. I start having some doubts when I got to page 27 and 29 and have discovered:
1) that battle zone and Unit cohesion add up only to Unit Intensity not to Army Intesity.
2) that Army Intesity is based on "last round's final army intesity"

So....what about the Army Intesity of Round 2, just following the 1st Charge round?

If the premises above are true....page21 is problematic since First Charge Intesity uses not just Army intesity ... but also modifiers which are typical of Unit Intensity (Battle zone and Unit Cohesion).

Same story for the example in red at page 22.
Would be better to clearly state What is Army Intesity and What is Unit Intesity...even at First Charge?

And Furthermore, in First Charge Intesity some part of Unit Intesity becomes very important if the Army Commander must roll against it...but what kind of Unit Intesity are we speaking aboiut if, for example, different PCs are in different units, maybe in different zones?
This is very messy!