I just beat the Egyptian campaign in Napoleon: Total War on the second try. The first try I attempted to conquer the whole Nile, but sending armies south of Cairo is a waste of time. Second try I captured the northern Nile delta, left a strong garrison in Cairo, and sent Napoleon to take Acre and Damascus asap, which worked quite well: I finished the campaign something like 18 months before the end date.
The starting position in the "Europe" campaign looks really messy, too many generals and not enough units. I'm thinking the best move initially might be to defend France's borders in Europe while staking everything on landing Napoleon in England with a full stack. Should be easy to avoid the Royal Navy, the problem I'm anticipating is constant revolt from the English population tying up my forces there and leading to problems on the Continent as Prussia declares war a few turns into the campaign.
If anyone has played Napoleon I'm curious to hear how you approached the European campaign. As it's my first playthrough of the game I'm playing on Normal battle difficulty and Hard campaign difficulty.