some ideas to give squads weapons:
-You could convert some blunderbuss's to represent grenade launchers or shotguns
-You could convert old style mortars to be well mortars
-You could use long barrelled muskets/rifles to be snipers
-Maybe some veterans to represent skirmishers
-More cavalry!!! a 17th century army often relied on the cavalry to carry the day.
maybe consider the Death corps of kreig list, just look for death korps of krieg pdf on google, death riders and the extra WS will help, plus you can get cannons (without tracks)
"Everyone's a pacifist between wars. It's like being a vegetarian between meals."-Colman MaCarthy