I believe there is a correct "historical" version of Waterloo out there. Yes the stock HPS one is quite inaccurate. I think HPS Waterloo suffers the worst of historical inaccuracies compared to other titles. Nonetheless, quite a battle can still be had if these things don't bother you.
Obviously it does bother me. It's why I bought the game. Every historical scenario in HPS Waterloo is a complete fantasy, and fantasy scenarios are what Charlie C. was most famous for (for example, the Pickett's Charge scenario where Pickett's Division is armed with AK-47 rifles). Charlie didn't do an ounce of real historical research for any scenario he ever presented. He just collected his pay and moved on, but everyone has to live with it. jonny