Here is my submission of a Severin-alike for Hetairoi. I asked
@Magoose for permission for an idea I was cooking up, and here it is. Wrote most of this during the afternoon, then at dinner, paused as I attended a showing about Japanese-Americans in WWII, then finished afterwards.
The name is explained in the above omake. The -ion suffix is a diminutive, like Hephaestion, one of Alexander's companions. Bampas is Greek for papa, (as is papas, the root word for pope, but bampas has a certain flavor). Makedon is the Greek version (without using the Greek alphabet of course) of Latinized Macedon. The proud Hetairoi and Pezhetairoi of Phillip II of Macedon, reduced to "the pikemen and horsies," out of the mouth of children. It was attested that the phalanx could deploy and advance in silence, which would have been unnerving to witness.
The Agrianes or Agrianians were a Paeonian tribe that became allies of Phillip in 352 BC, and provided elite peltasts as auxiliaries to the phalanx. They were first picks for any detached duties, fighting on broken ground, or infiltration and assault of fortresses. I recall at least one account where the Agrianians stormed a fortress by scaling the cliff it stood on. Side note: Agrianian Axemen were my favorite unit in Total War Rome II when playing Macedon, because they could deal lots of damage with javelins, outpace heavy infantry, and tear pike formations apart with flank attacks. And compared to elite shock cavalry like the Companion Cavalry, they were dirt cheap and extremely versatile (you could use them to break down the enemy infantry line or soften up the cavalry while your Companions or Thessalians rekt their faces. As long as they didn't get caught in the open by melee or shock cavalry, or ran headlong into heavy infantry or pikes, they did well and were very cost effective.
Historically, the Macedonian army deployed with the phalanx in echelon, forcing their elite right flank to contact the weaker enemy left (armies typically deployed with elites on the right to counter formation drift (with shields on the left, formations tended to drift left as men sought protection from their left-hand neighbor's shield) and battles might begin to spiral clockwise if not countered by placing the best, most experienced troops to anchor the line), with weakest troops on the left) and create openings for the Companion Cavalry to strike into. The Agrianians held the position of honor to the
right of the Companions, so as to screen their flank or support them by disrupting the enemy charge with a shower of javelins.
Then comes the confusion of what is a lochos and how big is it. The Macedonian army defined a lochos as a file of 16 men. Sixteen lochoi together formed the syntagma (lit. group/ can translate as battalion), the 256-man pike square, commanded by a syntagmarch (equivalent of a modern major). Four or five syntagma formed the taxis or taxeis (lit. order/ can translate as regiment) commanded by a chilliarch (lit. 1000 man commander, a modern colonel).
However, in most Greek city-states, notably Sparta, a lochos was a company of men. Sparta called up men for military service by age brackets, and if all were mobilized, a lochos would number 640 men. Older men were typically not called for service, so the lochos usually numbered 300. So yes, the typical lochos was the maximum number of troops that one of the two ruling kings of Sparta could legally take as a personal bodyguard. In the lead up to Thermopylae (literally, the Hot Gates), Sparta was holding a religious festival and being sticklers for tradition, could not and would not call up their military, even in the face of Xerxes' invasion. Thus, Leonidas rules-lawyered his way into taking a personal trip with the largest legally permitted bodyguard he could take, to illegally join the other Greek city-states at Thermopylae.
Slingers (best range, some armor piercing, fast fire rate), then peltasts (high damage, good ap, shields for skirmish survivability, ok as backup melee), were my favorite missile troops in TWR2 (Agrianian Axemen were classed as melee infantry that could freely fire javelins when not moving, so they don't count), archers were trash aside from Syrian and Cretan archers, but those were super expensive mercenaries, and you needed to play as Rome to get good value out of them through the regional auxiliary system. Later themed DLC bows became comparable for less cost, but that's paid power creep for you.
Obligatory Zoolander reference for something small. If you look at the grips/handles of ancient swords, they are downright tiny. I think only three of my fingers would fit inside the guard, maybe two-and-a-half for some. I've never seen a good explanation for this, excused as: "swords are sidearms" and "people had smaller hands back then." Ok, historical rant over. This author's not is almost twice as long as the omake itself, damn.