Can anyone shed some light on the differences between the training master and the training officer and how unit experience points are translated either into upgrades or combat effectiveness?
Here's what I've figured out so far:
Leaders (McClellan, Rufus King, Halleck, Sigel) can have the "Training Officer" trait. This trait gives commanders a chance at upgrading (training) up to two regiments (elements) of volunteers or conscript models (cavalry as well?) into regular infantry models.
HQ Units can have the "Training Master" trait. This trait gives every unit in the stack 1 XP per turn.
Where I'm lost is whether experience has any relationship to the unit model of a particular unit and/or how that experience is translated into combat effectiveness?
That will also help me understand whether training officers have any relationship to training masters (i.e. training master is a poor man's training officer) or whether the two traits are designed to do completely separate things.