After a hard fought battle for Stockholm, victory is mine and the old order is removed.
So when you choose to side with the rebels, does that just mean you are kicked out and given a rebel army and forced to take the capital?

Or does this work like RTW BI did where a variety of generals side with the loyalist and a variety side with the new regime?

Because it sounds like you just took one city, but as it is early game you have not had many cities.