One of the gems in the Micromark Army List order of battle sets is the “WW2.5” hypothetical set. In an alternate victorious Germany, it’s kind of a way to do a battle with all sorts of never-were prototypes and units from Allies and Axis. However, the organizational structure remains largely the same as historically-with one strange exception.
This is the “Pharaonic” Division, adopted by Egypt as part of returning to its ancient roots (yes, this is an excuse plot). And it’s interesting. At division level, it’s very conventional (three brigades, one armored and two infantry), and at brigade level mostly so (two “hosts”/subunits of either tanks or infantry).
However, the regimental (or “host“, as it’s called) level is extremely different. Like the infamous pentomic formations, it has five companies and skips the battalion level. Line platoons consist of five ten-man squads. Artillery battalions consist of five batteries of five guns each.
Tanks do not follow the rule-of-five and instead use a more conventional 4-3 model (4 tanks in a platoon/troop and 3 of those in a company/squadron). However, tank squadrons have an organic pentomic mechanized infantry troop. Although they’re not in the OOB document, I can see hypothetical independent armored formations intended for attachment to infantry units being organized in the “5 subunits” way to make attachment and organization easier. It’s worth nothing that the self-propelled guns used primarily for infantry support/defense are arranged this way.
The original pharaonic division was only covered in mechanized form, but its principles mean it can easily be adopted to other types of units. For instance, I can easily make a triangular pharaonic division with either three or six infantry hosts (depending on if you want a brigade level or not) and the usual support elements.