I was mostly just interested in taking a look at it to see how it compares with mine. Mine are of a higher tier, about equal to t4 and t6 units with a higher than usual firearms skill (250 for t4, 350 for t6) to compensate for the accuracy of firearms.
Yeah. The only reason my army works right now is because I have so many, so when they're all shooting simultaneously, even if 90% of all the shots miss, the 10% that hit will often result in heavy damage. Those are similar to my numbers actually. I tried to keep them a little balanced to the comparable troops of the same tier in Floris, but I added a little more oomph because I didn't want to make rifles too good. I mean, even in history flintlock rifles weren't really reliable or anything. A skilled archer will still trump a regular rifleman, but the fact that becoming a skilled archer took many years of training (a lifetime for Asian cultures especially) while a rifleman could be trained in a few months was the biggest benefit. That was also a consideration for me, so my troops are lower level than most same-tier troops.
My tier 4 rifleman (uses either matchlock/flintlock rifle) is about 220 in firearms, but the tier 5 guys (top tier for riflemen, using flintlock rifles) have 300. I wanted it to feel worth it because training from tier 4 to 5 actually takes a while. I have mounted riflemen that I call "rangers" because they're sort of a jack of all trades, having rifles, horses and two-handed weapons or short and quick polearms. I sometimes use them as insertion units instead of full mounted cavalry. I ride them towards the flank of the opponent then dismount them (because their Horse Archery skill is actually really low) and make them form ranks there so that the enemy is taking fire from at least two positions at all times. But their skills are only about 180 for all weapons including firearms on average.
Just out of curiosity, what skill do firearms use?
It's a hidden skill called Firearms. You can enable displaying it via the module.ini file in the mod folder. Naturally it doesn't gain any levels by itself, and normal troops also have 0 in it.