Can someone help explain the difference in Tiller games?

[acctingman69]

What are the differences between the Squad Battle series over John Tiller's Campaign Series?

I read that not all of the Sqaud Battle games have the 3D view?

I like that the Campaign series has all the nations OOB's in one game.

If someone could help educate this noob on the differences in the games I'd appreciate it.

Thanks!