I am devouring frantically the FL books and I'm planning to run a few sessions soon. I've just tried the combat system in my kitchen table and I found it to work very smooth and exciting, but I have one issue, and not with the rules, but with how to make them work nicely.
As you can deduce from the title, I've never run a zone-based combat system, I've only played with grid systems and with systems that handle distance (you are at 30 meters and you can move 20 meters each round, and so). As far as I understand, the zones are well defined areas in which the action occurs. I have no trouble in imagining how to decide what are each zone in a well enclosed environment. Take for example a Tavern, where you have the common room zone, the zone behind the bar, the stairs' zone... etc. Or in a road crossing the forest, where the road could be a zone and the forest at each side a different zone.
But my trouble comes when I try to imagine a combat in an open area. Let's say in the plains. You don't need to have well defined zones and I have some trouble thinking that everyone in the battlefield is at near range. I can't come up with a way of justifying how to divide the map in zones where you have not any phisical barrier that clearly divides both.
Most likely it is that I'm not being imaginative enough, but that's why I seek advice on how to plan the encounters.
I hope I made myself clear and thank you!