I’ve been playing in non guided mode for a few weeks and it’s so much better than just following the dot on your hud. Having to examine clues to work out where to go on the map is great. Especially in co op as it’s a great discussion. It really good fun and immersive and makes great use of the open world. The ones where you have to gather clues in the region to narrow the area down are better than when you get all the clues at once.
When you get to the actual mission point though it’s business as usual. Would be great if you could extend the above sort of game play a bit more to the actual mission. Obviously if you have no markers it may make the mission a bit confusing so it’s striking the right balance.