@Hoplite Sure! Honestly, you can just look at the files of this mod to see what I did. It's fairly lightweight, and contains everything you'd need to make something similar, as all you'd have to do is change modifiers/localisations etc.

Keep in mind, EU4 does not allow you to actually "create" new special units (it's hardcoded), but only rename and change preexisting ones. This mod changes the musketeer unit, because AI france largely never uses it anyway.

If you want to change around modifiers (or change another unit other than musketeers), this site on the wiki [eu4.paradoxwikis.com] contains basically everything you need.

If you have any other questions, I accepted your friend request, so you can ask whenever (though I'm notoriously slow to respond to messages lol)

Hi! I really like your mod — great work! I'm interested in learning how to mod Europa Universalis IV, and I was wondering if you'd be willing to help me create a similar mod. I'd like to make unique units for other countries, but I'm not sure where to start. Would you be open to sharing some guidance or tips?

Thanks in advance!

cool mod