In vanilla AOE 3, most European civs had access to the Crossbowman, who was basically a garbage skirmisher for the early game. I didn't necessarily agree with this design decision but they did serve a function until you could get actual Skirmishers.
With Wars of Liberty, I noticed that quite a few civs have access to these archaic ranged units like Hajduks or Rangers and I can't figure out why you would ever use them. They're subpar to musketeers in every way and they only have a bonus against light cavalry.
I'm curious to hear what other players use these units for and what the devs intended with these units because I can't find any use for them in any of the civs that have them. (Balkan Hajduks, European Rangers, Anglo Militia, and to a lesser extent, the Mexican Insurgentes)