Each of these armies is allowed X chariots per general, in some form or other.
Does this mean those chariots are restricted to that command? Or is it simply a way of calculating the total number to use, and you can assign them freely (within the ally general limits if relevant)?
That is, in the Etruscan League list, you're allowed "Up to 2 [chariots] per general". Does that mean that each command can have no more than 2 chariots (plus the general's chariot)? Or do you total up the number of Etruscan commands, multiply that by 2, and then assign those chariots how you like between the generals (so, for example, two commands might have four chariots each while the other two have none)?
The way I'd prefer to see it done (and probably the way I'd design the army) is the first option - the limit applies for each command.
The reason I ask is that the wording is significantly different for the Companions and Mounted Scouts in the Sub-Roman British army. There it says "2-4 (or 0-2) in each general's command". Now there's no doubt about the restriction here - definitely no swapping allowed.