Radical idea (and I’m not necessarily sold on it), but what if you increase Carolean hitpoints by like 120% and attack by like 80% and cost by 100%? Make them a 2 pop unit. Increase train time as well.
The increased space efficiency (ie Caroleans are half the physical size in game (because they are each basically two instead of one now)) is a double edged sword as it makes body blocking for cannons harder but basically allows more firepower to engage in melee, and arguably, but to a lesser extent ranged combat.
Ranged units having more attack is better than hp so it’s a nerf, at least if they get killed.
It would also fit a bit better historically because Sweden had a small strong military.
Each Caro would cost like 130f and 80c (maybe revert the plus 5f nerf to get 120f 80c)
This would also seem applicable here:
I’d be interested to know what people think as it’s an interesting idea that might or might not be good