I just finished watching the Sharpe’s Rifles series. Good stuff. A sergeant of the 95th Rifles rises through the ranks to Colonel with lots of adventure along the way.
Read the books. The tv show was fun, but it was a Godawful bastardization. The books are loaded with mostly accurate description of historical characters and events, not just battles. They’re necessarily modified to put Richard Sharpe in them, but they’re based on prime sources as much as possible and accepted biographic and historical books whenever needed.