Let's take Brazil, which is supposedly easiest to play. Cassus Belli is highest for Venezuela. But to get my forces organized way up north there is a big effort. Moderate use of money and one-day-build facilities so as not to wack out my economy. Get my units together from all over that very large country and organize them properly up north. Then I take their capital in a day or two.
But let's say some generous player(s) have these or other countries ready to go, at the knife edge. Troops are organized intelligently. Economy as good as possible. I'd love to jump into a game like that. Even in Europe. I love series, but find the HOI's so easy to text mod.
I have fun with SR, but it's sorta a lot of work