Three against one.

Ah... So that's what you mean. Well, I can't help you with that. I always create maps from scratch:D

But when you create a map from scratch, you know it "inside and out"... If you create a map for other people, then it's different, but if it's for yourself, you already know everything about it, you don't even need to send scouts to explore the territory, you remember everything by heart...