First off, Stardock I'd like to say thanks for making this game. It is a great deal of fun even as is, and once polished will probably completely resolve my 14 year complaint about a lack of a legitimate MoM successor.
#1; I have noticed that as my groups of units get killed down to one model (explicitly the groups of 4 getting killed to a single model), they retain their stats and their health, but never regrow their additional party members. They gain their health back, retain the group stats, just no models. This appears to happen for enemy units as well, as frequently, when I get into combat, my opponent will have 6-8 of the same apparent single unit with a vast array of health and stats which appear to be from having been created as a squad and then killed down.
At the very least, it would helpful to know easier if I am fighting a simple darkspawn or one that has been magic'd into a folded gestalt of four of itself and fights with the fury of ten men.
#2; as an extension of #1, I'm not explicitly certain how the game deals with making up the damage that gets assigned, but it seems to me that these single models have an easier time doing damage to things than the exact same "unit" did when it was many. I may just be noticing a trend in the randomization, but it seems a little uncanny.