Recommendation Needed Panzer Campaign Game Choice for Axis Player

[pokeytrev]

PBEM and/or online play are not something I wish to use at this time. I get that these games are best played with others, but I am just not interested in that until I am used to these games' systems. I think the AI seems pretty competent in some of the scenarios that I have played (obviously not comparable to a human player).  What I am really looking for is a game I can play against the AI. If not John Tiller, can someone recommend something that is more suited to single player?

Something about the style and visuals of the John Tiller games really grabs my interest. Single player against the AI, even if not challenging, is how I am getting enjoyment out of the games at this time. I could steamroll the AI and still have a fairly good time. I just want the immersion.