Maltrease,
Your list is wonderful work !
As for your question, I don't know exactly what happens if you specify a unit name that is not unique, but I think it takes the first corresponding id (so id 19 for Heavy Cav).
Thuis has to be tested though.
But anyway it's relatively rare to need to have *that exact* sort of indy light inf
, usually you want a Bane Lord, a Niefel Giant, a Vampire, or a group of Hoplites, and in this cases using the unit names is way easier and easy to read
