I had a lot of fun with Activision's Battlezone and especially Battlezone II. I hadn't realized they were inspired by an older game by Atari. They seem to differ in that Activision's games also include elements of the RTS and FPS genres (build your base, command your troops, walk and shoot first-person, get into battleships and drive them, etc.). They have a story mode too, if I remember right, and Battlezone II has a cheat to enter an editor for the level landscapes.

https://en.wikipedia.org/wiki/Battlezone_(1998_video_game)

https://en.wikipedia.org/wiki/Battlezone_II:_Combat_Commande...