I am beginning to wonder if we aren't looking at units in Elemental slightly improperly? Currently, each icon on the map, in a squad of 1 to 10 pieces, is regarded and treated as a group of 1 to 10 individuals. This kind of got me thinking back to strategy board games, and that Elemental is slightly more abstract in it's tactical implementation. This also got me thinking about, "why even are all 10 people in my squad getting a chance to attack?" So, based on my above thoughts I was wondering if increasing the number of people in a squad just shouldn't affect the squad stats, and not treat each icon as an individual? Would a logarithmic increase to stats be more appropriate? You have your base squad, centered strangely around 1 icon. As you research more increased squad sizes, slight, but gradually increasing stats for the squad are introduced. HP's are the only thing that are a little dubious to me here, but STR, DEF I would think would.
Even further, this stats should be in comparison to an opposing squad. If two squards squaring off are of equal size, no bonus to Attack and Defense. At this point it should boil down to equipment and experience, Vets versus Recruits, Plate versus Leather, Swords of War versus daggers. This could also open up other research areas, namely formations for the squard, though most would probably have to be more ambiguous than, "Wedge Formation." It would be more like Loose, Tight, Defensive, Offensive. You could treat them as special abilities, as discussed in one of Frog's journals. You click on the ability and it lasts based off the unit experience level, and/or combat. Formations could be treated as, "being used," once contact with the enemy has occured.
On top of this, there could be researched special unit functions, like Sergeants, Grenades (like Steven Erikcon's Malazans use), etc. You could also treat this as a special ability, thought a sergeant would be more of a constant-passive. This would also make only Heroes, and Sovereigns unique, individual units. Did I make this at all clear what I am trying to get across?