Like I said, that hat was rather common on various Swedish regiments, so including one->two regiments that use that hat (specifically the one regiment I was thinking of that I can't remember the name of) just for the sake of accuracy. The 'Narke-Varmland' regiment, or something along those lines, looked pretty cool, IIRC. Wore that hat, but red and blue on some of their other pieces.
This picture (Yes, it's ETW, but they used historical references as shown when you right click the regiment) for it's uniform.