When calculating frontage, "ideal" composition of divisions, and bonuses, does it matter if the elements are independent or intrinsic to brigades/rgts?
For example, there are artillery or sharpshooter elements intrinsic to certain units we can purchase, and of course these can be purchased independently and added to a stack. So, if I want 4 artillery elements in division, do the elements embedded into purchased units count, or do they have to be independent units with 4 elements?
Same for Sharpshooters; if the ideal is one element/division, do I have to place an extra independent unit into the stack or do the elements embedded into the units suffice. I have noticed that a Sharpshooter icon appears on the leader's Atavar when an independent sharpshooter is added to the stack, but not otherwise.
If not to the questions above, why ever buy infantry units with artillery or sharpshooters embedded into the OOB if they do not count for the above purposes?