It's hard to draw a map of a place if you've only ever been through it once, going in a straight line in a fast moving vehicle.
For a guide, you may want someone who can draw a map from memory. You may want someone who has been lost where you're going. You may want someone who has, at least, been there a lot of times, walking in more of a zig-zag pattern and seeing what's around.
OR you're accepting a guide who knows a little more than you but can't draw the map.
Both can work, but understand what you're getting and accept the advantages of the latter if you choose it. That is, you will be getting lost along the way, but you will also be a guide at the end of the journey.
Sometimes there is no map and never will be - for the country is forever new. In these cases we can only compare it to country we have been in before and offer help to one another.
I work for Exadel, Inc. Exadel is a great company, with great people all around the world. I currently lead the Boulder, CO, USA office.