From the game's official site:
Field Commander Napoleon is our biggest game to date, as befits the Empire, the Emperor, and his Grande Armée! The game is so massive it requires a 4" high box!
The game design focuses on the battlefield tactics and Napoleon’s powerful personality. Through political and military cunning, Napoleon swept France to super-power status. In previous Field Commander games, supply was a primary concern. In this game, Napoleon’s achievements and public adulation drive all facets of game play. Be successful, gain the support of your troops and your countrymen, and you can achieve anything!
You can play each campaign as a stand-alone game, or as part of a linked series of games.
Each campaign has its own unique set of force counters that accurately detail the divisions and corps that participated in the campaign.
This game is perfect for fans of Napoleon and solitaire games in general. The complexity level is ideal for both beginners and experienced gamers.
The pre-order price is $74.99 and "If you pre-order Napoleon through the DVG web site, you will also receive a deluxe mounted version of the Battle Map board (in addition to the standard Battle Map). The mounted Battle Map Boards will not be available later."
Here are the rules to the game.
For more info, check out the official site.