There is a lot of math involved. And I need to see what is best for 2 factions facing each other. But the wrong tiers are faced.
So far, I determined that there should be NO changes when facing infantry.
So, what if tanks fight light vehicles? The translation of a tank vs tank is not used here either. But completely abandoning this shouldn't happen either. So, I suspect that the translation of tier 2 vs tier 2 is used for when a tank fights a tier 2 unit.
In case of blue vs red. We had 0.67 versus 1.5 of tank vs tank.
1 versus 1 in regards of infantry.
And 0.75 versus 1.33 in regards of light vehicles.
In a sense. A red tank has 150% firepower against blue tanks. But 133% firepower against blue vehicles.
20 seems a lot... 15 UNIQUE units PER FACTION ... Is more reasonable. Starcraft 1 had ~15 units per Faction. Zergs had the Infested Humans and Eggs too... But in terms of actual units, it was closer to 15...
Anyways I just feel like it's HARDER to BALANCE "more" Units than less. I mean can you even come up with 15 Units???
You could go with LESS "Bodies" and variable weapons. Like a Soldier can have a Rifle, Grenades, Machine Gun, Flame Thrower, Sniper Rifle, etc. etc. Depending on the NATURE of the Weapon (like the "Machine Gun" which would give a movement penalty because of the "heavier" weapon or "Sniper Rifle" which could give a bonus Accuracy and some kind of Camouflage Bonus).
That's like 5 Soldiers (Already) and we have not covered Light and Heavy Motorized units. But IMHO 15 is enough variety.
Again it's YOUR game... I'm just saying that the more units you have the more likely to have "AP" (Analysis-Paralysis) because players don't know what units to build and how to stack them.
This is just MY opinion. And you are OK if you design 20 units per Faction... But like I said, 20 seems a bit excessive.
Sincerely.
Note #1: I'm not saying that 20 is NOT possible... I'm just thinking with "bodies" + "weapons" there are more variations possible with just a few "bodies" (like 2 or 3). Like you have a SOLDIER and then a JEEP and then a TANK. Those sound like 3 distinct classes. Given a variety of "weapons" you can easily get like 15 units IMHO.
Note #2: For example JEEP could have: "6 Riflemen", "4 Grenadiers", "1 Machine Gun", "1 Laser Gun", "Missiles" (SRMs).
And TANK could have: "Blast", "Explosive", "Laser", "Flame", "Missiles" (LRMs).
Something like that. IDK... Just thinking. You of course can come up with your OWN ideas. This was just an "exercise" to illustrate that with different "bodies" you can more easily CONFIGURE weapons to be used in TANDEM with the "bodies"...
In my attempt to do something similar FAILED and I gave up on that METHOD of "customization" (It just did NOT work). But it may yet work for you and make for a more DEFINITE "armies" and "platoons"...