Agreed, but there were some good battles in the middle east and Napoleon did take troops from there to add to his army.
There were minor battles happening all over the world between Britain and France during N’s reign though.
It would have made ships more of a factor too by making them into transports.
Now, while Bonaparte crowned himself Emperor in 1805, there were 8 years of war previous which France was engaged in.
Napoleon started as an artillery officer and worked his way up before seeing his chance to seize power.
He was not well respected and often feared during this time too. Hence the reason they sent him to Egypt.
I feel adding more map/areas, like in later A&A games, adds more options and enhances re-playability.
If sticking with Europe only, adding more areas would also work.
Just my take on it.