John Tiller's Battleground Series is a Hall of Fame lineup of games covering the Civil War and Napoleonic Wars. We've compiled these classic games into two new affordable collections, incorporating updated versions of these legendary titles. Incredible historical gameplay and great value!
I changed my desktop resolution to play this game to 1366 by 768 from normally 1920 by 1080.
This makes the units bigger,I had same problem everything was too small,is better at lower resolution.
Another thing you can try is Windows Magnifier,use WINDOWS key and + ,and WINDOWS and esc to turn off.
Just tried something else,and it works.
In Windows Display settings,right click desktop to bring up.
Then choose scale and layout,then pick 175%.
Works great on this game.
Much better than changing resolution,even the 2D mode is quite legible.