Was Napoleon's musketeers and cavalry occupying 2 and 4 populations respectively, a deliberate design or a mistake?



If the population of Napoleon’s two units doubles compared to the population occupied by the Bourbon units, it appears very weak. Is this a deliberate design or an unexpected mistake?

That looks like a bug. It seems to be an issue with the Ancien Regime card. If you send it before revolting they will have twice the population cost. If you do not send it before revolting, the units will have the intended population cost. You can still make these units without sending Ancien Regime by sending the Napoleonic Era card.