None of those games compare to the Close Combat series. Close Combat has been known for a great degree of realism and great soldier mental state AI, I never found the other games to be close. (Except for the Combat Mission series)
Matrix Games aquired the Close Combat license and published Cross of Iron which is a reworked Close Combat 3 (russian front) game engine with updates and new content (i think) I have it and have played multiplayer on it, worked like a charm!
http://www.matrixgames.com/games/game.asp?gid=335
Your PC Shop may order it for you.
One of the best fan sites for Close Combat:
http://www.closecombatonline.com/CSO/
http://www.closecombatonline.com/forums/